Aristotelian metaphysics is a change in the form of metaphysics, which seems to be extraneous to it but in reality co‐determines it in the most intimate way. Descartes’ Meditations are intellectual exercises that extend over six days. On almost every new day, a reference is made to the results or intermediary results of the previous day, or the spiritual experiences of the last days. This division into days, as well as the physical back‐references, mentioned in the First Meditation and repeated (...) in the Third, the repetitions, the monologue form, and other elements, point to the fact that Descartes’ Meditations must be understood within the tradition of philosophy in the sense of spiritual exercises. The knowledge of God must be considered as the highest stage of freedom. Descartes himself described the true path to the truth as the path a facilioribus ad difficiliora [from easier to more difficult things]. (shrink)

ABSTRACT The purpose of this article is to examine the meditation practices of Chinese Buddhists during the COVID-19 pandemic, focusing on their motivation and activities, and the health benefits derived from meditation. Initially, the article delves into the motivations driving Chinese Buddhists to practise meditation. Subsequently, it explores the meditation-related activities undertaken by Chinese Buddhists. The article also investigates the role of faith in fostering resilience within the Chinese Buddhist community by exploring the medical benefits of meditation, with special emphasis (...) on its effectiveness in alleviating health issues stemming from the COVID-19 outbreak. This article reveals that the motivation for practising meditation arises from the aspiration to attain enlightenment in accordance with Buddhist teachings and that the meditation-related activities not only spread across major Chinese Buddhist communities worldwide but also serve as a source of solace for followers grappling with the challenges posed by the pandemic. Additionally, the article provides strong evidence to support that meditation-based interventions have positive effects on mental and physical health problems caused by the pandemic. (shrink)

We have previously found that attention to internal somatic sensations during a heart beat perception task increases the misperception of external touch on a somatic signal detection task , during which healthy participants erroneously report feeling near-threshold vibrations presented to their fingertip in the absence of a stimulus. However, it has been suggested that mindful interoceptive attention should result in more accurate somatic perception, due to its non-evaluative and controlled nature. To investigate this possibility, 62 participants completed the SSDT before (...) and after a period of brief body-scan mindfulness meditation training, or a control intervention . The meditation intervention reduced tactile misperception and increased sensitivity during the SSDT. This finding suggests that the perceptual effects of interoceptive attention depend on its particular nature, and raises the possibility that body-scan meditation could reduce the misperception of physical symptoms in individuals with medically unexplained symptoms. (shrink)

The Ideas and Meditative Practices of Early Buddhism. Tilmann Vetter. E.J. Brill, Leiden 1988. xxxviii, 110 pp. Dfl.42.50.

The article explores meditation-based examination of experience as a means for developing a contemplative, nonnaturalized, and existentially meaningful empirical research of consciousness in which the experiencing person is regarded as the primary investigator. As the first phase of a broader project, a group of seven researchers carried out a series of five meditation retreats. We sampled the ongoing experience of the researchers at the same random moments during meditation practice. The acquired data, consisting of more than 500 journal entries, (...) interview transcripts, and participatory analysis records, set the ground for three lines of enquiry: (1) What, if any, kind of meditative practice is suitable for researching experience? How can it be cultivated? (2) Can a group of researchers skilled in meditation systematically investigate selected experiential phenomena? (3) What is the actual lived experience of a group of researchers engaged in a continuous meditation-based examination of experience? In this report, we primarily focus on the third question, offering a concrete ethnographic overview of our research enterprise. We conclude by relating our findings to the discussion of the phenomenological practice of the epoché as an empirical tool for the study of consciousness. (shrink)

The construct of “mindfulness” has increasingly become a focus of research related to meditation practices and techniques. There is a growing body of research indicating clinical efficacy from therapeutic use, while cognitive neuroscience has provided an insight into the brain regions and mechanisms involved. Significantly, these approaches converge to suggest that attention is an important mechanism with trainable sub-components. This article discusses the role of attention and argues that memory has been neglected as a potential key mechanism in mindfulness–meditation practices. (...) Specifically, it proposes that working memory offers a useful model for integrating and understanding the different mental devices that are used in meditation and suggests a model with the potential to provide a comprehensive account of how the apparent benefits of these practices arise. This call for a more comprehensive and integrated approach is necessary if the study and application of meditation are to become more than a parochial concern. (shrink)

A pocket-sized collection of mindfulness practices anyone can do anytime--from the author of Mindful Eating. Mindfulness can reduce stress, improve physical health and quality of life, and give you deep insight. Meditation practice is one way to do it, but not the only way. In fact, there are easy ways to fit it into your everyday life. Jan Chozen Bays provides here 25 practices that can be used on the go to cultivate mindfulness. The three-breath practice, the mindfulness (...) of entering rooms, offering compliments, tasting your food one careful bite at a time--these deceptively simple practices can have a cumulative effect for the better. The book is an abridgment of Bays's longer collection How to Train a Wild Elephant: And Other Adventures in Mindfulness. (shrink)

Within a variety of contemplative traditions, non-dual-oriented practices were developed to evoke an experiential shift into a mode of experiencing in which the cognitive structures of self-other and subject–object subside. These practices serve to de-reify the enactment of an observing witness which is usually experienced as separate from the objects of awareness. While several contemplative traditions, such as Zen, Mahāmudrā, Dzogchen, and Advaita Vedanta emphasize the importance of such a non-dual insight for the cultivation of genuine wellbeing, only very few (...) attempts in contemplative science have turned toward the study of non-dual-oriented practices. This article starts from a recently developed theoretical cognitive science framework that models the requirements of a temporary experiential shift into a mode of experiencing free from cognitive subject–object structure. This model inspired by the enactive approach contributes theoretically grounded hypotheses for the much-needed rigorous study of non-dual practices and non-dual experiences. To do so, three steps are taken: first, common elements of non-dual-oriented practices are outlined. Second, the main ideas of enactive cognitive science are presented including a principled theoretical model of what is required for a shift to a pure non-dual experience, that is, an experiential mode that is unbound by subject–object duality. Third, this synthesized theoretical model of the requirements for the recognition of the non-dual is then compared with a specific non-dual style of meditation practice, namely, Mahāmudrā practice from Tibetan Buddhism. This third step represents a heuristic for evaluating the external coherence of the presented model. With this, the aim is to point toward a principled enactive view of non-dual meditative practice. In drawing the implications of the presented model, this article ends with an outlook toward next steps for further developing a research agenda that may fully address the concrete elements of non-dual practices. (shrink)

An esteemed modern Tibetan Buddhist teacher presents a system of meditation instructions designed for achieving relaxation in our stressful, fast-paced world In the late 1990s, shortly after arriving in the United States, it became clear to Dza Kilung Rinpoche that his Western students responded to traditional meditation instructions differently from his students back in Asia. The Westerners didn't know how to relax—and their pressured, fast-paced lifestyles carried over into meditation. With this in mind, Dza Kilung Rinpoche set out to create (...) a meditation system that could break through the noise of Western life. The Relaxed Mind contains instructions for the seven-phase practice that he developed for students in the West. It is adapted from traditional instructions to counteract the overwhelming distraction that is becoming a global culture these days, not only in the West. Beginners will find a wealth of useful, easy-to-understand information while more experienced meditators may be surprised to find their practice deepening through letting go of tension. (shrink)

The technique of ‘examining meditative topics’ is one of the emblematic practices of the ‘Zen’ traditions of East Asia. An emblematic feature of this technique is the generation of a sense of inquiry, or more literally a ‘feeling’ or ‘sensation of doubt’. This inquiry creates an intense introspective focus that, in some strands of the practice, may be accompanied by palpable physical sensations; these sensations seem to be analogous to the experience of ‘excitation’ or ‘rapture’ described in contemporary (...) samatha/śamatha and vipassanā/vipaśyanā practice. I explore the treatment of prīti in Abhidharma theory and suggest that, where prīti is not classified as a discrete dharma, it might best be classified as a type of otherworldly vedanā that is ‘free from carnality’. I conclude with a discussion of an explicit questioning dimension in commentarial discussions of satipaṭṭhāna practice in the Pāli tradition, where inquiring ‘Who goes? Whose is this going?’ helps to transform the act of walking into an act of mindfulness. This questioning dimension suggests possible parallels with the Zen notion of ‘doubt’. (shrink)

A business corporation capable of evolving, termed a learning corporation, has a conscious quality. It is the systemic version of a rigid structure-preserving corporation that would be expected eventually to run into problems and end up as a failure. The conscious corporation analogy can be used to simulate the sequence of processes that occur during Upasana, a Vedic technique of meditation. In this essay, it will be argued that the Vedic view of consciousness is parallel to the postulate that successful (...) business corporations have a conscious quality, and if the Upasana process sequence is considered as a competence model, in the Chomsky-ian sense for corporate consciousness, the executive functionary in a successful corporation is effectively a practitioner of Upasana. (shrink)

Why would Rene Descartes, the father of modern rationalist philosophy, choose "meditations" -- a term and genre associated with religious discourse and practice -- for the title of his magnum opus that lays the metaphysical foundations for his reform of all knowledge, including mathematics and sciences? Why did he believe that the immortality of the soul and the existence of God, which the Meditations on First Philosophy set out to demonstrate, can only be made self-evident through meditating? These are (...) the question that Christopher Wild's book answers. Descartes discovered the "foundations of a marvelous science" through a dramatic conversion in southern Germany in the winter of 1619. The spiritual and cognitive exercises, derived from ancient philosophy and the Christian meditative tradition, which Descartes deployed in the Meditations, enable readers to discover metaphysical truths with the same degree of self-evidence with which Descartes did during his own conversion. Descartes' meditative turn, Wild argues, brings to a culmination a life-long preoccupation with the practice or craft of thinking, known as Cartesian method. By joining meditation to method the Meditations becomes the founding document for a Cartesian "art of turning," a new practice of both thought and life. (shrink)

On the basis of many years of personal experience the paper describes Buddhist meditation as a mystical practice. After a short discussion of the role of some central concepts in Buddhism, William James’ concept of religious experience is used to explain the goal of meditators as the achievement of a special kind of an experience of this kind. Systematically, its main point is to explain the difference between a craving for pleasant ‘mental events’ in the sense of short-term moods, (...) and the long-term project of achieving a deep change in one’s attitude to life as a whole, a change that allows the acceptance of suffering and death. The last part argues that there is no reason to call the discussed practice irrational in a negative sense. Changes of attitude of the discussed kind cannot be brought about by argument alone. Therefore, a considered use of age-old practices like meditation should be seen as an addition, not as an undermining of reason. (shrink)

Based on the Zen philosophy about focusing away from the self, a guide to "neural Zen" meditative practices draws on recent findings in brain research to outline recommendations for various methods of pursuing a balanced, selfless state of ...

Mindfulness has emerged as a potential motivator for sustainable lifestyles, yet few studies provide insight into the relationship between mindfulness practice levels and individual engagement in pro-environmental behaviors. We also lack information about the significance of meditators’ behavioral differences in terms of their measurable environmental impact and the motivational processes underlying these differences in pro-environmental performance. We classified 300 individuals in three groups with varying meditation experience and compared their pro-environmental motivations and levels of animal protein consumption. Exceeding prior (...) attempts to compare high-impact behaviors of mindfulness practitioners and non-practitioners, we created the most detailed classification of practice engagement by assessing frequency, experience and type of meditation practice. This nuanced view on mindfulness practice reveals that advanced meditators, who reported high levels of connectedness with nature, subjective happiness and dispositional mindfulness showed significantly more concern for the environment. They also demonstrated the lowest levels of greenhouse gas emissions, land occupation and water use related to their animal-protein consumption. This study is the first to follow a self-determination theory perspective to deepen our understanding of the motivational differences between meditator groups. We revealed that advanced meditators reported significantly more integrated motivation toward the environment than non-meditators. We also provided preliminary evidence for a new theoretical framework suggesting that experiential strategies such as mindfulness practices could strengthen the relational pathway of pro-environmental behaviors. Using sequential mediation analysis, we confirmed that the negative effect of mindful compassion practice on greenhouse gas emissions from animal-protein consumption is partially mediated by CWN and integrated motivation toward the environment. While our study does not support assumptions of causality, it shows that much can be learned by studying the motivations of advanced meditators for maintaining high levels of pro-environmental behavior. (shrink)

A journey from "brainfulness" to mindfulness, from self-control to self-regulation, and from indifference to compassion. Mindfulness meditation is an increasingly popular form of an ancient and powerful technique for reducing stress, elevating one's mental state, and improving the practitioner's overall quality of life. Award-winning author and mindfulness meditation teacher Joseph Emet now takes you down a step-by-step path to integrate this potent form of meditation into your daily life. Offering tips, techniques, and practices from mindfulness meditation-coupled with stories from the (...) author's life as a teacher-Buddha's Book of Meditation guides you to a life teeming with the benefits of regular meditation practice. This volume also includes original music by the author that the reader can access through the web-calming the mind and enhancing the meditation experience. (shrink)

This is not the usual kind of self-help book. Indeed, its major premise heeds a Zen master's advice to be _less_ self-centered. Yes, it is "one more book of words about Zen," as the author concedes, yet this book explains meditative practices from the perspective of a " _neural_ Zen." The latest findings in brain research inform its suggestions. In _Meditating Selflessly_, James Austin -- Zen practitioner, neurologist, and author of three acclaimed books on Zen and neuroscience -- guides (...) readers toward that open awareness already awaiting them on the cushion and in the natural world. Austin offers concrete advice -- often in a simplified question-and-answer format -- about different ways to meditate. He clarifies both the concentrative and receptive styles of meditation. Drawing widely from the exciting new field of contemplative neuroscience, Austin helps resolve an ancient paradox: why both insight wisdom _and_ selflessness arise simultaneously during enlightened states of consciousness. (shrink)

An interfaith perspective on meditation discusses such aspects of the practice as its spiritual foundations, the benefits of energy-building exercises and affirmations, techniques for effective prayer, and ways to measure inner practice.

Concept of meditation in Tibetan Buddhism.

The Psychology of Meditation: Research and Practice explores the practice of meditation and mindfulness and presents accounts of the cognitive and emotional processes elicited during meditation practice. Written by researchers and practitioners with considerable experience in meditation practice and from different religious or philosophical perspectives, he book examines the evidence for the effects of meditation on emotional and physical well-being in therapeutic contexts and in applied settings. The areas covered include addictions, pain management, psychotherapy, physical health, (...) neuroscience and the application of meditation in school and workplace settings. Uniquely, the contributors also present accounts of their own personal experience of meditation practice including their history of practice, phenomenology, and the impact it has had on their lives. (shrink)

The Meditative Way - Readings in the theory and practice of Buddhist meditation. Ed. by Rod Bucknell and Chris Kang. Curzon Press, Richmond 1997. x, 274 pp. Cloth £40, pbk £14.99. ISBN 0-7007-0677-1/0678-X.

This study investigated the link between meditation, self-reported mindfulness and cognitive flexibility as well as other attentional functions. It compared a group of meditators experienced in mindfulness meditation with a meditation-naïve control group on measures of Stroop interference and the “d2-concentration and endurance test”. Overall the results suggest that attentional performance and cognitive flexibility are positively related to meditation practice and levels of mindfulness. Meditators performed significantly better than non-meditators on all measures of attention. Furthermore, self-reported mindfulness was higher (...) in meditators than non-meditators and correlations with all attention measures were of moderate to high strength. This pattern of results suggests that mindfulness is intimately linked to improvements of attentional functions and cognitive flexibility. The relevance of these findings for mental balance and well-being are discussed. (shrink)

Owing to its benefits on various cognitive aspects, one’s emotions and wellbeing, meditation has drawn interest from several researchers and common public alike. We have different meditation practices associated with many cultures and traditions across the globe. Current literature suggests significant changes in the neural activity among the different practices of meditation, as each of these practices contributes to distinct physiological and psychological effects. Although this is the case, we want to find out if there is an underlying commonality among (...) all these different practices. So, we ask the following questions related to different practices of meditation, the traditional goal of meditation and its significance - What is the central purpose of meditation? Do traditions define the final goal of all the practices of meditation? Are the purpose and goal of these practices different or is there a common goal to be attained through all these distinct practices? Embracing the traditional perspective, through this paper, we want to emphasize, although these techniques and practices may appear different on the periphery, eventually, they seem to subject one to the same experience at the end; a natural meditative state (discussed in various spiritual traditions as the goal of meditation). In view of future studies on different meditation practices and also those exploring this subjective state, we offer some interesting ideas based on the traditional insights on meditation. In this context, we would also like to make a few comments on the way contemporary researchers view different practices of meditation. (shrink)

What challenges arise when attempting to incorporate body practice and meditation into undergraduate philosophy courses? In recent years, a number of philosophers have begun teaching such practices in academic classrooms, and at my university I have experimented specifically with teaching qigong, taijiquan (i.e., t’ai chi), hatha yoga, and meditation techniques in a variety of courses on East Asian and Indian philosophy. Teaching body practices and meditations poses potential problems about exclusion and advocacy in the classroom: exclusion, in the sense (...) that the practices might improperly marginalize certain students from full participation, and advocacy, in the sense that including these practices in a class might amount to problematic advocacy of a particular substantive set of religious values. This paper explores ways I have addressed these problems through a variety of pragmatic, situation-specific approaches and by encouraging students to have a sense of ownership about the practices and the learning environment itself. (shrink)

What challenges arise when attempting to incorporate body practice and meditation into undergraduate philosophy courses? In recent years, a number of philosophers have begun teaching such practices in academic classrooms, and at my university I have experimented specifically with teaching qigong, taijiquan (i.e., t’ai chi), hatha yoga, and meditation techniques in a variety of courses on East Asian and Indian philosophy. Teaching body practices and meditations poses potential problems about exclusion and advocacy in the classroom: exclusion, in the sense (...) that the practices might improperly marginalize certain students from full participation, and advocacy, in the sense that including these practices in a class might amount to problematic advocacy of a particular substantive set of religious values. This paper explores ways I have addressed these problems through a variety of pragmatic, situation-specific approaches and by encouraging students to have a sense of ownership about the practices and the learning environment itself. (shrink)

I argue in this essay that Stoic philosophers in the late Greco-Roman period utilized philosophical exercises and spiritual technologies similar in form to a meditative exercise currently practiced in Buddhism. I begin with an in-depth discussion of moral development in the late Stoa, focusing particularly on their theories of cosmopolitanism and oikeiōsis. These theoretical commitments, I argue, necessitated the adoption of exercises and practices designed to guide practitioners toward the goal of universal moral concern. Using insights gained from Buddhist (...) practice, I identify passages in Stoic texts that call for and prescribe moral exercise. While much work in comparative philosophy compares the content of diverse philosophical theories, the form that these theories take can also be compared. Stoic philosophy was viewed as a “way of life” by many ancient philosophers, and thus their philosophical views share several formal characteristics with Buddhist religious practices. The primary good realized by this comparison, I conclude, is to outline the ways in which Greco-Roman philosophies can be enriched by reading these theories in light of the lived, practical traditions that characterize Buddhist thought. (shrink)

Meditation involves psychophysical training which can result in a range of benefits including creating a calm mind and increasing self-awareness, relaxation, and tranquility. Increasing evidence, mostly based on short-term focused interventions, suggests that meditation-based activities may also have favorable effects on physical wellbeing including cellular aging. Hence, the aim of this study was to investigate if continued practice of meditation benefited quality of life, state of mindfulness, and plasma telomerase level in healthy adults. 30 long-term and skilled meditators were (...) recruited from meditation centers in different parts of the island following a two-tier screening process of 70 eligible participants and 30 age- and gender-matched healthy non-meditators were recruited from the community. Mindfulness level and the quality of life were measured using the Five Facet Mindfulness Questionnaire and Quality of Life Questionnaire, respectively, while the levels of plasma telomerase enzyme were measured using Enzyme-Linked Immunosorbent Assay. Skilled meditators had a better mindfulness level and quality of life than those in the comparison group. Similarly, higher plasma telomerase levels were observed in skilled meditators compared to non-meditators. Trait mindfulness level and plasma telomerase level showed a significant relationship with the duration of meditation practice. Regression analysis indicated that trait mindfulness level significantly predicts the plasma telomerase level. The findings of this comparative study add to the evidence on sustained benefits of meditation on wellbeing and healthy aging and supports incorporating meditation-based activities into lifestyle practices. (shrink)

In recent years, the scientific study of meditation and psychedelic drugs has seen remarkable developments. The increased focus on meditation in cognitive neuroscience has led to a cross-cultural classification of standard meditation styles validated by functional and structural neuroanatomical data. Meanwhile, the renaissance of psychedelic research has shed light on the neurophysiology of altered states of consciousness induced by classical psychedelics, such as psilocybin and LSD, whose effects are mainly mediated by agonism of serotonin receptors. Few attempts have been made (...) at bridging these two domains of inquiry, despite intriguing evidence of overlap between the phenomenology and neurophysiology of meditation practice and psychedelic states. In particular, many contemplative traditions explicitly aim at dissolving the sense of self by eliciting altered states of consciousness through meditation, while classical psychedelics are known to produce significant disruptions of self-consciousness, a phenomenon known as drug-induced ego dissolution. In this article, we discuss available evidence regarding convergences and differences between phenomenological and neurophysiological data on meditation practice and psychedelic drug-induced states, with a particular emphasis on alterations of self-experience. While both meditation and psychedelics may disrupt self-consciousness and underlying neural processes, we emphasize that neither meditation nor psychedelic states can be conceived as simple, uniform categories. Moreover, we suggest that there are important phenomenological differences even between conscious states described as experiences of self-loss. As a result, we propose that self-consciousness may be best construed as a multidimensional construct, and that “self-loss,” far from being an unequivocal phenomenon, can take several forms. Indeed, various aspects of self-consciousness, including narrative aspects linked to autobiographical memory, self-related thoughts and mental time travel, and embodied aspects rooted in multisensory processes, may be differently affected by psychedelics and meditation practices. Finally, we consider long-term outcomes of experiences of self-loss induced by meditation and psychedelics on individual traits and prosocial behavior. We call for caution regarding the problematic conflation of temporary states of self-loss with “selflessness” as a behavioral or social trait, although there is preliminary evidence that correlations between short-term experiences of self-loss and long-term trait alterations may exist. (shrink)

This paper addresses the multiple readings that Foucault offers of Descartes’ Meditations during the whole span of his intellectual career. It thus rejects the (almost) exclusive focus of the literature on the few pages of the History of Madness dedicated to the Meditations and on the so-called Foucault/Derrida debate. First, it reconstructs Foucault’s interpretation of Descartes’ philosophy in a series of unpublished manuscripts written between 1966 and 1968, when Foucault was teaching at the University of Tunis. It then addresses the (...) important shifts that took place in Foucault’s thought at the beginning of the 1970s, which led him to elaborate a new approach to the Meditations in terms of ‘discursive events’. Finally, it argues that those shifts opened up to Foucault the possibility of developing an original reading of Descartes’ philosophy, surprisingly close to his own interest in ancient askēsis and the techniques of the self. (shrink)

Although research has found that long-term mindfulness meditation practice promotes executive functioning and the ability to sustain attention, the effects of brief mindfulness meditation training have not been fully explored. We examined whether brief meditation training affects cognition and mood when compared to an active control group. After four sessions of either meditation training or listening to a recorded book, participants with no prior meditation experience were assessed with measures of mood, verbal fluency, visual coding, and working memory. Both (...) interventions were effective at improving mood but only brief meditation training reduced fatigue, anxiety, and increased mindfulness. Moreover, brief mindfulness training significantly improved visuo-spatial processing, working memory, and executive functioning. Our findings suggest that 4 days of meditation training can enhance the ability to sustain attention; benefits that have previously been reported with long-term meditators. (shrink)

In this paper, I argue that the performance stories in the Zhuangzi, and the Butcher Ding story, emphasize an activity meditation practice that places the performer in a mindfulness flow zone, leading to graceful, efficacious, selfless, spontaneous, and free action. These stories are metaphors showing the reader how to attain a meditative state of focused awareness while acting freely in a flow experience. From my perspective, these metaphors are not about developing practical or technical skills per se. My (...) argument challenges a strict instrumental reading. Although instrumental reasoning can easily lead one to focus on the pragmatic outcomes depicted in these stories (See Eno, “Cook Ding’s Dao;” Callahan, “Cook Ding’s Life;” and Robins, “Beyond Skill”), the proposed pragmatic outcomes are merely a kind of collateral result of effortless, free actions, in the flow experience. The metaphors of Butcher Ding, the Lüliang rapids swimmer, the Wheelwright Bian, the Woodcarver Qing, the cicada catcher, the naked artist and so on are used to show the reader a way to engage in free and graceful action in the flow experience. Zhuangzi is not concerned about developing labour skills. He criticizes such skills; seen below when the Butcher claims to have “… left skill behind …” (進乎技矣) (Graham, Chuang-tzu, 63), and chapter five notes that “… skill is a peddler” (工為商) (Watson, Complete, 75). (shrink)