EN
The objective of the article is to characterize the complex standing of psychological heritage of Thomas Aquinas’s concept of soul in view of previous tradition. Further, the article attempts to demonstrate that Thomas´ psychology is significantly wiser than traditional interpretations resting on the concept of soul as substantial form would indicate. A novel approach to the concept of soul in Thomas Aquinas´ works is suggested, based on the possibility of relating to the soul in terms of various philosophical levels or disciplines, namely the metaphysical, physical and moral-theological levels. The argumentation presented rests on a basic assumption that metaphysical concepts allow for analyzing all that falls in the scope of other disciplines – physics, and to some extent, even theology. The latter assumption constitutes a key for the analysis of the levels of Thomas Aquinas´ philosophical psychology.