"[...] The human body is constantly undergoing a process of decay and of reconstruction. First builded into the etheric form in the womb of the mother, it is built up continually by the insetting of fresh materials. With every moment tiny molecules are passing away from it; with every moment tiny molecules are streaming into it. The outgoing stream is scattered over the environment, and helps to rebuild bodies of all kinds in the mineral, vegetable, animal, and human kingdoms, the physical basis of all these being one and the same.[...]".