Lecture I
It is not arbitrary talk when one divides man into these limbs of which one usually speaks, but it points to very real things. When one speaks of the physical body and etheric body, one speaks of what is predisposed in the mother before fertilization, what is always predisposed in the mother. When man from spiritual heights, after he has lived for a while the life between death and new birth, again inclines to the physical life, then he feels, as it were, that in a female personality related to him that disposition is found into which he can pour that which has developed in him since the last life from the rest of the organism to the head. The human embryonic formation therefore starts from the head. The head is that which first develops in a certain perfection in the human embryonic formation. That which acts on this head formation, which actually comes from the cosmos, is already in the ego and in the astral body. And the fact that the ego and the astral body can be together with the physical body and the etheric body comes from fertilization. Fertilization mediates the coexistence between the ego and the astral body, and the physical body and the etheric body. What is the origin of fertilization? Fertilization is first of all concerned with the mere metabolic life of man. It is aimed at giving him a new metabolic and respiratory organism, because the forces of the head organism originate from the previous incarnation. All that, therefore, which brings man, who comes from the previous incarnation, together with the head organism, man owes to his relation to the spiritual world. Everything that, so to speak, enters the human being in embryonic life, when fertilization has taken place, the human being owes to the coexistence with the earth being, with the earthly being.