Like a swan walking out of water the eternal one (as embodied in a man) endued with four legs (respectively called waking dreaming, sleeping and) turiya hides one of the legs (turiya, which can be perceived alone by ascetics, all other men perceiving the other three); he who sees this hidden leg for purpose of grinding the other three, regards and emancipation as the same. The ascetics perceive that Lord who is Eternal.