According to Osho, singing, dancing and music warm your energy, thrill the whole body and pull you out of the mundane, making you naturally more alert, watchful and alive. This joyous totality shortens the path: vipassana arises on its own, as a by-product of living fully, rather than as cold, effortful sitting.
Singing and dancing wake you up inside so meditation happens by itself—easily and joyfully.