VII. The Rhythmic System, Sleeping and Waking, Imitation

All bodily activity arises supersensibly from the will, is indeed an out-streaming of will-impulses into the organism of movement. Even in purely mental activity the will is active and is flowing into the limbs. If we sit at a desk and think out decisions which are then carried out by others, our will-impulses are, nevertheless, streaming into our limbs. In this instance we simply hold them back, restrain them. We ourselves may sit still, but the orders we give are really an in-streaming of the will into our own limbs. We must therefore first discover what is of importance in these physically active impulses of the will if their unfolding is to have the right effect upon the state of sleep; and the following must be taken into account.