VII. Inner Processes in the Human Organism. Sense-Perception, Breathing, Sleeping, Waking, Memory

You see, when our astral body between waking and falling asleep enters into relation in the sphere of our senses with the air that has now become rhythmical breathing and has therefore changed in character, we learn, so to say, to know the outermost periphery of man. But we learn to know still more of man if we can reach the higher stage of supersensible cognition called Inspiration in the books already mentioned.