Cosmosophy: Volume 2: Cosmic Influences on the Human Being (Cw 208)

With these words Steiner describes the relationship between inner and outer realities. In a sense deeper than normally recognized, the mind-body split is the result of a fear to penetrate the mind―the inner human being. This lack of inner courage rebounds on society and civilization, producing the terrible conditions modern humanity finds itself surrounded by. And real healing will not come until we can summon the courage to penetrate the hidden inner mysteries.

These themes and many more are explored in these insightful lectures.