Lecture II
As [a] physical human being we have our physical heart, and we all know how to appreciate the difference between a dry, abstract man who develops his thoughts in a machine-like way and a man who goes with his heart into everything that he experiences—with his physical heart, that is; we can all appreciate this distinction. From the man who slouches around without any interest in life and whose heart plays no part in the experiences of his soul, we do not expect much on the physical plane in the way of real cosmic knowledge. A kind of spiritual heart develops outside our physical body, parallel to the phenomena I have described in “Knowledge of the Higher Worlds”, just as the blood-system develops and has its center in the heart. The blood-system goes outside the body and outside the body we feel ourselves in our heart bound up with what we know in the way of spiritual science. Only we must not look to enter into the knowledge of spiritual science with the heart that is in our body but with the heart outside it, for it is with this heart that we enter into what we know of spiritual science.