What happens during days of silence?

According to Osho, in days of silence he withdraws from outer activity, lets the body rest profoundly, and sinks into twenty-hour stretches of meditative sleep. Identification with the body loosens, speech and looking outward feel like a strain, and inner centering deepens. This silent, total rest nourishes him; he re-emerges fresh, radiant, and renewed—though inwardly unchanged.