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The Rudolf Steiner Archive

a project of Steiner Online Library, a public charity

An Occult Physiology
GA 128

Steiner discusses here the super-sensible systems of forces and their relationship to the physical organs. He focuses on the digestive and respiratory systems, the differentiation of conscious and subconscious processes in the organs, the "warmth" function of the blood and its effect on the ego, and the evolutionary process implicit in the formation of the spinal column and the brain.

Published in German as: Eine Okkulte Physiologie.

I.The Being of Man March 20, 1911
II.Human Duality March 21, 1911
III.Co-operation in the Human Duality March 22, 1911
IV.Man's Inner Cosmic System March 23, 1911
V.The Systems of Supersensible Forces March 24, 1911
VI.The Blood as Manifestation and Instrument of the Human Ego March 26, 1911
VII.The Conscious Life of Man March 27, 1911
VIII.The Human Form and its Co-ordination of Forces March 28, 1911