The Essence of Anthroposophy
First of all, we get to know the human being as a sensory being, as a being that exists as a natural being within natural facts, natural forces and natural substances. When we learn through physiology and biology how the substances of the external world penetrate into the human being, which paths they take, which forces then continue to work, then we become aware of how the human being stands – I would like to say – as a physical-sensual whole. But when we get to know the human being in the way I have just described, then we see not the physical-sensuous whole, but we become aware of the many different ways in which the human being is determined by the cosmos in relation to his various members. Thus, for the characterized supersensible knowledge, it shows that the solar element, which has an effect on man from the cosmos and continues to have an effect on man, has its effect on everything that I would like to call the main, the head organization of man, the one that is mainly the nerve-sense organization. This is therefore what has to do with the development and growth of the human being, and what is most active internally in the very young child.