Rādhāvallabha: At the time of sleeping, when the soul leaves the body, why is the body not destroyed at that time?
Prabhupāda: Why? Suppose you have left the car; does that mean it is destroyed? You are going again.
Rādhāvallabha: But at the time of death it is destroyed when you leave it.
Prabhupāda: Death is different. When the car is no more usable, that is death. But we are returning to the car because we know that it is usable. And if we know that it is useless, we don't go to that car. That is death.