Altruism declares that any action taken for the benefit of others is good, and any action taken for one's own benefit is evil. Thus the beneficiary of an action is the only criterion of moral value - and so long as that beneficiary is anybody other than oneself, anything goes.
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.