Lecture I

We know that if we want to understand the physical human body we must go back to the three preceding embodiments of our Earth—the Saturn, Sun and Moon periods. In a remote, primordial past, during the Saturn embodiment, the germ of the physical body was already laid down. During the Sun embodiment the foundation of the etheric body was laid down; and during the Moon embodiment that of the astral body. In reality our Earth-evolution, in all its phases and in all its epochs, is none other than that which enables the ego to fulfill its whole being. We can say that just as the physical body had reached a significant stage of its evolution at the end of the Saturn period, the etheric body at the end of the Sun period, and the astral body at the end of the Moon period, so at the end of the Earth period our ego will have reached a significant point in its evolution.