13. The Relationships Between Spiritual Science and Individual Academic Subjects III

If we understand how the soul and spirit are connected to the physical and organic, then we can – by using such concepts, which first become mobile in themselves and are thus also suitable for becoming ever richer internally, so that reality can be seen through more and more can be seen through more and more. One can then also study certain processes in the human organism, which are nothing other than the external expression of what one sees through inwardly. For example, the process of voice change, which in the male individual is connected with sexual maturity. A similar process takes place in the female individual, only it is more widespread throughout the whole organism. One only comes to a complete understanding of these processes when one sees in such a way how, through what takes place in the change of voice or in other processes in the female organism, the will energy connects more inwardly, more penetratingly with the organism. And at the same time one comes to understand how what develops up to the change of teeth culminates particularly intensely in the formation of the human head, in which the teeth are formed, while what then emerges at the time of sexual maturity takes hold of the whole rest of the organism, with the exception of the head. All this becomes immediately clear in the contemplation. And through this one attains an inner knowledge, an inner contemplation of the human being. But such an approach can, in turn, have an enormously fruitful effect on the sciences, which, after all, lead quite particularly to certain limits of knowledge, which at the same time are limits, regrettable limits, of human practical reality.