The nature of the soul (psyche) is one of the most concerned problems in western anthropology. Based on the traditional idea of the immaterial and intelligible nature of the rational soul, Augustine comes to understand the spiritual nature of the soul, through its self-presence and self-consciousness, that the rational soul (mens) has self knowledge of itself and its own knowing activities, in doing so, it needs no bodily organs. Man is therefore composed of a spiritual soul and a material body.