Abstract

A notion that the theologians consider as a physical explanation model while discussing the movement in accordance with their theological views on the comprehension and interpretation of the universe is i‘timād. In conclusion, this notion, which has various meanings in different contexts, has been used to express “the tendency of object in motion, potential energy, pressure or resistance of an object to another object”. Within this framework, including weight-lightness, ascent-descent, impulse-pull etc., many phenomena related to the unidirectional and compulsory movement of objects have been explained. On the other hand, theologians dealt with i‘timād in the context of their own conceptions of the universe, in relation to their understanding of causality while discussing the movements of bodies in the universe and their changes-transformations, and the causality relationship between them. As a result of their discussions, they asked questions about i‘timād and tried to find answers to these questions in the perspective of their own views of the universe. Furthermore, in relation to the theory of i‘timād, Mu‘tazilite scholar Abû Ishâq Ibrâhîm al-Nazzâm (d. 231/845) discussed the theory of tafra (leaping) and put forward contrary arguments. One of those who sought answers to the questions discussed in this direction and expressed an opinion on i‘timād is the Ash’arî theologian Abû al-Maâlî al-Juwaynî (d. 478/1085). He discussed i'timād in terms of the accidents of spatial generation and used i'timād as a universal explanatory theory for the phenomena of movement, space, weight and lightness, and directional phenomena such as up and down. From this point of view, he also tried to interpret i'timād with examples from natural phenomena and objects. In doing so, he synthesized i'timād within his own system and presented it as an explanatory element by considering the Ash'arite metaphysical principles through the examples he frequently gave. Thus, he put forward views on whether the movements of objects give rise to i'timād or not, and drew attention to the usage of i'timād in the Muʿtazilite and Ashʿarī schools. In this context, he tried to prove with examples whether the Muʿtazilite understanding of iʿtimād overlaps with the Ashʿarī understanding of iʿtimād. On the other hand, al-Juwaynī put forward his proofs in the context of his criticisms of the Muʿtazilites in general and al-Naẓẓām in particular. His criticisms were generally in response to the views of Muʿtazilite scholars on the phenomenon of motion in the context of iʿtimād. In fact, al-Juwaynī criticized the arguments of Abū ʿAlī al-Jubbāʾī (d. 303/916) and Abū Ḥāshim (d. 321/933) in the context of the theory of tawlīd and al-Naẓẓām in the context of the theory of tafra through their arguments. In this direction, the paper concentrates on how Juwaynî stated the examples he put while proving the theory of i‘timād in terms of movement phenomenon and what he comprehended from it. In addition, the paper discusses his criticisms against Nazzâm’s theoretical and experimental arguments he brought in the context of tafra theory while elaborating Juwaynî’s explanation of movement phenomenon.