A comment to Consciousness explained, in under 3 minutes:
“Although we cannot phenomenally discover what we are, we know beyond any doubt that we are. There is also no doubt that ’that which we are’ is aware that it is and is intuitively aware that it is real and that there is only one reality. That is knowable (non phenomenally) beyond any doubt. It is a noumenal knowingness. This knowingness is the glimpse into reality. I/awareness know beyond any doubt that I am, and that I am aware. (Being and knowing go hand in hand).
The unknowable is that which appears.
The doubt arises when I know a tree, a bodily sensation or an image. What appears to be is not necessarily what it is. One could be hallucinating or could be under a hypnotic state.
As long as we confuse the knowable (awareness) with the unknowable (appearances), we remain in ignorance.”