In these five lectures, Rudolf Steiner provides us with a variety of therapeutic insights that connect the organs and their functions with the cosmic processes they reflect.

He examines how the ancient Greeks perceived our composition in relation to the four elements: earth, water, air, and fire, and the therapeutic significance of this perspective, as well as various psychopathologies and their organic origins.

In this series of lectures, we are given an approach to the physical nature not merely as a mechanistic structure but as an expression of spiritual causes, as well as the subsequent effects of mental influences in the present life and the shaped outcomes in the next.