The following is from the book Maharshi’s Gospel (Click on the link for a PDF download), Book 2, Chapter 6:

Sri Ramana Maharshi: Do you remember, I told you once previously that existence and awareness are not two different things but one and the same? Well, if for any reason you feel constrained to admit the fact that you existed in sleep be sure you were also aware of that existence.

What you were really unaware of in sleep is your bodily existence. You are confounding this bodily awareness with the true Awareness of the Self which is eternal. Prajnana [Pure Consciousness], which is the source of ‘I-am’-ness, ever subsists unaffected by the three transitory states of the mind, thus enabling you to retain your identity unimpaired.

Prajnana is also beyond the three states because it can subsist without them and in spite of them.

It is that Reality that you should seek during your so-called waking state by tracing the aham-vritti to its Source. Intense practice in this inquiry will reveal that the mind and its three states are unreal and that you are the eternal, infinite consciousness of Pure Being, the Self or the Heart.