Consciousness is bigger than anything we can set-up in consciousness as the form of our awareness.
We are certain that we are conscious and yet we cannot discern its nature in any preconscious state of nature. Nor can we prove that such preconscious states relate to the fact of consciousness without relying implicitly on the very fact we are trying to establish explicitly in terms of those other facts. In other words, we can know the essential nature of consciousness only from within and must start from that knowledge in order to assess any fact about its nature and origin.
Furthermore, every time we probe the form of our consciousness in order to find out something new about it we alter the state of our awareness in the wake of our discovery – we generate a new state of consciousness, so ensuring that there is always something new to learn. And if, as it would seem, consciousness remains bigger than any fact we can determine about it, then our awareness of that paradoxical fact holds the key to expanding our horizons.