Lecture Thirteen

This brings us to something which must be observed still more closely. I must again and again point out one thing. The ideas we form of man almost always tend, unconsciously, to our regarding him as a solid body. True, we are aware that he is not precisely a hard body, that he is to some extent plastic, but we are very often unaware that he consists of far more than 75% fluid, of which only the residue can be regarded as solid mineral being. Man is really 75% a water being. Now I ask you, therefore, is it possible to describe the human organism, as is usually done, in sharp outlines—saying: ‘Here we have the lobes of the brain, here this organ’, and so forth, and then assume that the solidly circumscribed organs combine in their activity to bring about the activity of the whole organism? There is no sense whatever in that. It is a question of bearing in mind the fact that Man within the limits of his skin, is, as it were, surging water; that what is purely inwardly surging fluidity also has a meaning, and that we should not describe Man as if he were more or less a solid body. In Spiritual Science this has a very deep significance. For precisely when we consider the solid in Man, which is in a manner connected with the external minerals, we find that the solid in the human being has a certain relation to the Earth.