It seems that some persons are quite happy in committing sin, but sin can never make one really happy. Even if there were a certain pleasure in it for the moment, it would re-echo, and the echo of a false note is never pleasing to the musical ear. If a person were really happy in his sin, we could be assured that it was really his virtue, and that it was only to us, from our point of view, that his action seemed sinful. Therefore the Sufi attends to his own journey and does not judge others. If there is only a comparative difference between good and evil, sin and virtue, why, then, should there be punishment for evil and reward for good? The effect of good is itself a reward for good, and the effect of evil is itself a punishment, but from our limited point of view we attribute these effects to a third person, to a divine ideal.