Abstract

Being bound to the principle of the 'principiality of existence' as one of the most important pillars of Transcendent Philosophy has fundamentally transformed one of the most important issues in Islamic philosophy, i.e., the three modalities of being. Mulla Sadra, on the basis of his specific analysis in which he contrasts possibility of indigence of quiddity with the Necessary Being, divides existents into copulative and non-copulative existents. Unlike preceding philosophers who conceived of all the three modalities of being as modes of quiddity, he maintains that necessity is definitely one of the modes of existence and possibility one of the modes of quiddity. He also asserts that impossibility originates from non-existence.