III. Sleep and Death

Although the astral body, during sleep, experiences no mental pictures and also no pleasure and pain, it does not remain inactive. On the contrary, it is just in the sleep state that a lively activity is incumbent upon it. It is an activity into which it must again and again enter in rhythmical succession, if it has been for a time active in connection with the physical and ether bodies. Just as the pendulum of a clock, after having swung to the left and returned again to the center, must swing to the right because of the momentum gathered in its left swing, so the astral body and the ego living within it, after having been active for a time in the physical and ether bodies must, as a result of this, unfold a subsequent activity, body-free, in a surrounding world of soul and spirit. For the ordinary conditions of human life, unconsciousness occurs during this body-free condition of the astral body and ego because it presents the antithesis of the state of consciousness developed in the waking state through union with the physical and ether bodies, just as the swing of the pendulum to the right is the antithesis of the swing to the left. The necessity of entering into this state of unconsciousness is experienced by the soul-spirit nature of man as fatigue. But this fatigue is the expression of the fact that the astral body and ego, during sleep, prepare themselves to transform, during the following waking state, what has arisen in the physical and ether bodies through purely organic formative activity when freed from the presence of the spirit and soul elements. This unconscious formative activity and what takes place in the human being during and by means of consciousness are antitheses that must alternate in rhythmic succession.—The physical body can retain the form and stature suitable for man only by means of the human ether body, which in turn receives its proper forces from the astral body. The ether body is the builder, the architect, of the physical body, but it can only build in the right way if it receives the impulse for this purpose from the astral body. In the astral body reside the prototypes according to which the ether body gives form to the physical body. During the waking state, the astral body is not filled with these prototypes of the physical body, or at least only to a certain degree, for, during the waking state, the soul puts its own images in the place of these prototypes. When man directs the senses toward his environment he forms, by means of perception, thought images that are likenesses of the world about him. These likenesses are at first disturbances for the images that stimulate the ether body to maintain the physical body. Were the human being able, through his own activity, to bring to his astral body the images that are required to give the right impulse to the ether body, then there would be no such disturbance. This very disturbance, however, plays an important role in human existence. It expresses itself in the fact that the prototypes for the ether body do not act to the full extent of their power during waking life. The astral body carries on its waking activity within the physical body. In sleep, it works upon the physical body from without.[^1]