2. Consciousness in Sleeping and Waking States

Now you can easily see how mistaken it would be to say that the day is the cause of the night, and the night of the day. That would be what I have described to you in preceding lectures as a worm's philosophy. It is simply nonsense to call the day the cause of the night and vice versa; both result from the regular alternation in the spatial relationship between sun and earth. It makes just as little sense to say that sleep is the cause of waking, and waking the cause of sleep. Just as in the earth's case the only thing that makes sense is to say that it undergoes an alternation between day and night because of its position in space, so human life undergoes an alternation between interest for the inner and interest for the outer scene. These conditions have to succeed each other; anything else is out of the question. Life decrees that human beings must focus their attention on their surroundings for awhile, and then turn it inward, just as the sun, descending in the west, has no choice about what its further course will be.