Chapter II: The Nature of Humanity

Man has the etheric body, the science of the supersensible advances to a further member of human nature. And as in leading up to the etheric body attention had to be drawn to death, so, to form a conception of this further member of man's nature, supersensible science points to the phenomenon of sleep. All the creative work of man depends—so far as the manifest world is concerned—on his activity in waking life. But this activity is only possible if he again and again derives from sleep a strengthening of his exhausted forces. In sleep, action and thought disappear; pain and joy vanish from conscious life. On awakening, man's conscious powers well up from the unconsciousness of sleep as if from mysteries and hidden springs. It is the same consciousness which sinks into dark depths when man falls asleep, and then arises again when he awakens. To the science of the supersensible, what rouses life again and again from the unconscious state is the third member of the human being. It may be called the Astral Body.