Lecture XVIII

Suppose now that this rhythm is disturbed and does not work normally. In that case, the symbolic diaphragm, to which I have referred—which has no physical existence, but which results from the interplay of the rhythms—is not in order. Then there may ensue a process analogous to excessive action of the earth on vegetation. If the earth's saline action on plants became excessive, the plants would become too mineral. And the result is that the etheric plant inserted into the lung, that grows out of the lung so to speak as the physical plant springs from the soil becomes the cause of pulmonary sclerosis. Thus we find that the trend of the plant towards mineralisation may become excessive even in the organism of man.