In this book, the author Rasul Jafarian, emphasizes the entry of clerics into the centers of Iran revolution struggle and their role by relying on religion in the field of culture and then politics. In the present book, he seeks to find an answer to the secret of the leadership of the clergy in Iranian Revolution in February 1979; Therefore, he argues about the root causes and how the clerical religious forces are in the leadership position of the Islamic revolution movement.