The major scientific discoveries continued in the last four centuries; Where many natural phenomena were interpreted, and this scientific revolution resulted in the fact that people trusted more in science, and they began to suffer against the authorities of the clergy until the matter came until some refused religion in the college, and they dropped religious beliefs, which left psychological and spiritual emptiness, and made people more concerned about issues Existence and the position of man in this universe and the reason for its existence. In this book, Akkad follows the theories and scientific assumptions such as the theory of evolution and advancement, Copernicus 'statements, and material scientific laws, as well as the problem of the existence of evil in the world the minds of philosophers. He believes that these theories and philosophical ideas were the cause of atheism and denial; This is when some converted to it and made it a substitute for religious beliefs. Al -Akkad says: The next two hundred years will be sufficient to adjudicate the crisis of the present belief.