Christmas Course II

The heart is a sense organ of a different kind. The perceptive faculty of the liver is exposed to external substances that come into the human being. The heart is a sense organ for perceiving the inner being of man. I have often said that it is nonsense to regard the heart as a kind of pump which drives the blood through the arteries. The movement of the blood is the result of the activity of the ego and astral body, and the heart is merely a sense organ which perceives the circulation, particularly the circulation from the lower to the upper man. The task of the liver is to perceive, in the digestive process, what value a carbohydrate, let us say, has for the human being. The task of the heart is to see how astral body and ego are working on the human being. Therefore the heart is an entirely spiritual sense organ, the liver a wholly material one. This distinction must be made. We must develop a qualitative knowledge of the organs.