After asking what is the origin of behavioral action in humans, the philosophy of the science of behavior reaches behavioral reason. But what is behavioral reason? How is it the origin of behavioral action? Therefore, this article first pays attention to the position of practical reason in the field of behavior from the perspective of divine sages. Then, it deals with the characteristics of practical reason in behavior from the perspective of mystics. Then, it explains the position of behavior in the theory of the moral law of Professor Ali Abedi Shahroudi. Then, using an analytical method and based on the philosophical, mystical, and religious data of those great men, it explains the nature, types, and levels of behavioral reason, and in essence, it considers it to be a cognitive-motivational reason that has knowledge with a practical-behavioral characteristic and belongs to the behavioral realities existing in the truth of the heart. In addition to this definition, he addressed nine issues to explain the subject of the article, and spoke about the truth of the heart, the spiritual realm, the moral and intellectual forces, the types of behavioral wisdom, and explained the stages of behavioral wisdom, which include manifestation, evacuation, dissolution, sublimation, and annihilation.