Nirvana, therefore, is the fifth consciousness. It is a consciousness of a similar kind to that of a person in deep sleep. But in deep sleep one is asleep outwardly, that is to say in the physical body, while the mental body is also asleep. In this condition of Nirvana or highest consciousness, however, one is conscious all through of the body as much as of the soul. During this experience a person lives fully, as the consciousness is evenly divided and yet he remains conscious of the highest stage.