The book Origins of Belief is an introduction to the second level course of the Covenant of Strengthening Certainty within the Axis Industry program, which aims to familiarize the reader with some of the rational evidence contained in the Book and Sunnah, its construction and rulings, in addition to the reader's knowledge of the characteristics of the rational evidence contained in the Book and Sunnah and what distinguishes it from other evidence, and what distinguishes it from others.