Sri Ramana Maharshi
Our very experience of the jagrat and the swapna states proves that the Consciousness as the Self underlies all the five states, remains perfect all along and witnesses all of them. But with regard to similar consciousness in the deep sleep, every person is known to say “I was not aware of anything; I slept soundly and happily”. Two facts emerge from the statement (unawareness of anything and the happiness of sound sleep). Unless these existed and were experienced in sleep they could not find expression by the same person in the waking state.
Inference also leads to the same conclusion. Just as the eye sees the darkness which remains enveloping all objects, so also the Self sees the darkness of nescience which remained covering the phenomenal world. This darkness was experienced when it (the Self) emerged in dots of supreme bliss, shone a trice and fleeted away in such fine subtlety as the rays of the moon which peer through the waving foliage. The experience was however not through any media (such as the senses of the mind), but bears out the fact that consciousness does exist in deep sleep. The unawareness is owing to the absence of relative
knowledge, and the happiness to the absence of (seething) thoughts.
If the experience of bliss in deep sleep is a fact, how is it that no one among all the human beings recollects it? A diver who has found the desired thing under water cannot make his discovery known to the expectant persons on the shore until he emerges from the water. Similarly the sleeper cannot express his experience because he cannot contact the organs of expression until he is awakened by his vasanas in due course. Therefore it follows that the Self is the light of Sat, Chit, Ananda.
Visva, Taijasa and Prajna are the denominations of the experiencer in the waking, dream and deep sleep states respectively. The same individual underlies all of them. They do not therefore represent the True Self which is pure Sat, Chit, Ananda. The experience in deep sleep was said to be the bliss of Brahman. It is only the negative aspect of such bliss, as it is the result of the absence of thoughts. Moreover it is transitory. Such a bliss is only the abhasa, the counterfeit of Supreme Bliss. It is not different from
the blissful feeling of sensual pleasures. In deep sleep the Prajna is said to be united with the Self. So the individuality is potential in sleep. The Self is the basis of all the experiences. It remains as the witness
and the support of them all. The Reality is thus different from the three states, the waking, the dream and the deep sleep.