8. The Human Form and Its Co-ordination of Forces

Then we also have processes which occur outside us as processes of combustion or oxydation, when something or other combines with the oxygen in the air. When substances which readily combine with the oxygen in the air are taken into the organism, they radiate their inner activity most extensively throughout the inner organism. Whereas salts act only when introduced into the organism through the digestion or from without into the blood, and hence can get only a limited access to the inner organism; and whereas we can, with metals, work in as far as the inner cosmic system we have, in the external vital activities of the substances that readily unite with the oxygen of the air, something which radiates through the whole organism, even into the blood: something which is capable of radiating through all the systems of organs. We shall thus find it comprehensible that through such processes as develop too strong an inner vital activity in warmth, which is the outward manifestation of the development of the will, we find ourselves inwardly aroused, as it were, in our entire organism. Such is not the case if we direct our attention to those other processes which constitute the organic processes of thought. We feel there that the actions which, in yesterday's lecture, we connected with salt can take place only in certain organs. From this we see how complicated an apparatus the human organism is, and, at the same time, how complicated is its relation to the external world. Moreover, we see that we have now for the first time set the human organisation with its inner vital activities over against a mineral, inorganic Nature which has not yet been given life, into relation with what salts are, what the particular quality of a vaporising metal is, and what readily combustible substances are.