Online research in philosophy

Descartes argues that since there are no certain marks to distinguish waking experiences from dreams, we need to justify our belief that waking experiences are veridical experiences of physical objects while dreams are illusions. He resolves this problem by arguing that the absence of marks distinguishing dreams from waking experiences notwithstanding, we are justified in ascribing different cognitive values to waking experiences and dreams. For, our belief in God rules out any other explanation of the agreement of all our faculties in supporting the instinctive belief that waking experiences are caused by physical objects.

Dreams were a topic of study even in ancient times, and they are a special spiritual phenomenon. Generations of literati have defined the meaning of dreams in their own way, while Zhu Xi was perhaps the most outstanding one among them. He made profound explanations of dreams from aspects such as the relationship between dreams and the principles li and qi , the relationship between dreams and the state of the heart, and the relationship between dreams and an individual’s moral improvement. He summarized previous generations’ understanding of dreams and infused a new dimension from the School of Principles, pointing out a direction for individuals’ moral cultivation and spiritual pursuit. Zhu Xi also examined the opinions of Zhang Zai, Cheng Yi, Hu Hong and other thinkers on Confucius not dreaming of Duke Zhou in his later years, revealing differences between thinkers in the School of Principles. An analysis of Zhu Xi’s thoughts on dreams will provide deeper insight into the research on the School of Principles.

What, if anything, do dreams tell us about ourselves? What is the relationship between types of sleep and types of dreams? Does dreaming serve any purpose? Or are dreams simply meaningless mental noise--"unmusical fingers wandering over the piano keys"? With expertise in philosophy, psychology, and neuroscience, Owen Flanagan is uniquely qualified to answer these questions. In this groundbreaking work, he provides both an accessible survey of the latest research on sleep and dreams and a compelling new theory about the nature and function of dreaming. Flanagan argues that while sleep has a clear biological function and adaptive value, dreams are merely side effects, "free riders," irrelevant from an evolutionary point of view. But dreams are hardly unimportant. Flanagan argues that dreams are self-expressive, the result of our need to find or to create meaning, even when we're sleeping. Written with remarkable insight, Dreaming Souls offers a fascinating new way of apprehending one of the oldest mysteries of mental life.

Revonsuo argues that the biological function of dreaming is to simulate threatening events and to rehearse threat avoidance behaviors. He views recurrent dreams as an example of this function. We present data and clinical observations suggesting that (1) many types of recurrent dreams do not include threat perceptions; (2) the nature of the threat perceptions that do occur in recurrent dreams are not always realistic; and (3) successful avoidance responses are absent from most recurrent dreams and possibly nightmares. [Hobson et al.; Revonsuo].

: Lucretius' Epicurean account of dreams in Book IV of De Rerum Natura indicates that they are wholly void of prophetic significance and of little practical significance. Dreams, rightly apprehended, do little more than mirror our daily preoccupations. For Lucretius, all dreams pass through the gate of ivory and all are reducible to psychophysical phenomena.In this paper, I examine Lucretius' account of sleep and the formation of dreams in light of the Epicurean aims of the poem as a whole. In doing so, I give what I take to be a plausible sketch of the formation of dreams through what I call Lucretius' "selection model" of dreams. The selection model forbids, strictly speaking, the phenomenon of genuine prophecy through dreams, while at the same time it allows for a surprisingly rich psychophysical explanation of the genesis of seemingly prophetic dreams in sleepers. Thus, I argue, a proper grasp of the Lucretian account of oneiric formation is itself a significant part of the Epicurean cure for superstitions and religiously based ills of his day.

"Dreams" is a long overdue collection of writing on dreams from many of the top scholars in religious studies, anthropology, and psychology departments.

differences between dreaming and waking consciousness as well. In this chapter, we will argue that these differences mainly concern the subjective quality of the dreaming experience. The interesting question, from a philosophical point of view, is not so much whether or not dreams are conscious experiences at all. Rather, one must ask in what sense dreams can be considered as conscious experiences, and what happens to the experiential subject during the dream state. Finally, in order to arrive at a more differentiated understanding of dream consciousness, we will contrast our analysis of ordinary dreams with lucid dreams, as well as with the varying degrees of lucidity and cognitive clarity seen in semi-lucid and prelucid dreams.