It is not a dreamlike state, but the somehow insulated state, that a great musician achieves in a great performance. He's aware of where he is and what he's doing, but his mind is on the playing of his instrument with an internal sense of Tightness-it is not merely mechanical, it is not only spiritual; it is something of both, on a different plane and a more remote one.
The secret of concentration is the secret of self-discovery. You reach inside yourself to discover your personal resources, and what it takes to match them to the challenge.
