We thought of life by analogy with a journey, a pilgrimage, which had a serious purpose at the end, and the thing was to get to that end, success or whatever it is, maybe heaven after you’re dead. But we missed the point the whole way along. It was a musical thing and you were supposed to sing or to dance while the music was being played.
The animal tends to eat with his stomach, and the man with his brain. When the animal's stomach is full, he stops eating, but the man is never sure when to stop. When he has eaten as much as his belly can take, he still feels empty, he still feels an urge for further gratification.
When a man no longer confuses himself with the definition of himself that others have given him, he is at once universal and unique. He is universal by virtue of the inseparability of his organism from the cosmos. He is unique in that he is just this organism and not any stereotype of role, class, or identity assumed for the convenience of social communication.
The idea of the Universe being ruled by that marvelous old gentleman, is no longer plausible. It isn't that anybody has disproved it, but it just somehow doesn't go with the vast infinitude of the Universe.
This is what Zen means by being detached—not being without emotion or feeling, but being one in whom feeling is not sticky or blocked, and through whom the experiences of the world pass like the reflections of birds flying over water.