According to Osho, the silence you feel here is not borrowed from his presence; it is your own, ripening amidst a deliberately marketplace-like ashram. He avoids Himalayan seclusion so meditation matures without escape. By exposing you to everyday disturbances here, your peace becomes independent and portable, so when you leave, it remains with you anywhere you go.
It’s your own inner quiet, trained to stay even when life is noisy, so it won’t disappear when you leave.