In the Garden of Eden Adam saw the animals before he named them: in the traditional system, children named the animals before they saw them.1 - Alan Watts

He comes back because he sees the two worlds are the same, the transcendental world and the every day world

To understand music, you must listen to it. But so long as you are thinking, “I am listening to this music,” you are not listening. To understand joy or fear, you must be wholly and undividedly aware of it. So long as you are calling it names and saying, “I am happy,” or “I am afraid,” you are not being aware of it. Fear, pain, sorrow, and boredom must remain problems if we do not understand them, but understanding requires a single and undivided mind. This, surely, is the meaning of that strange saying, “If thine eye be single, thy whole body shall be full of light.

The “natural” man lives for one motive: to protect his body from pain and to associate it with pleasure. Because he can only feel with his own body, he has little interest in the feelings of other bodies. Therefore he will only take interest in other bodies under the stimulus of rewards and punishments, that is, by an exploitation of his self-interest in the interest of the community.