The act of being: philosophy of Revelation from Molla sadra point of view, is one of the rarest investigation in western world, which its subject completely belongs to Islam. He discusses in this book on intuition, facts, and importance of metaphysics, in Islamic philosophy . Chapters of this book are: 1- Introduction, 2- first part: revolutionary metaphysics, 3- Second part: revolutionary wxistentialism. 4- Thieth part: transcendent universe. This book was published by Fayard publication.