Eleventh Lecture

This leads us to study how the human being enters the physical world from the spiritual world during the embryonic period, and we find that there is a special relationship between the forces present in phosphorus or phosphorus compounds and those forces present in the uterus that oppose embryonic development. If these forces were not present in the uterus, every human being would simply develop rickets. The uterus is at the same time a constant remedy against rickets, as it contains forces that are of the same kind in the organism as the forces present in external nature in the mineral substance phosphorus or in phosphorus compounds.