I am that which knows or is aware of all experience, but I am not myself an experience. I am aware of thoughts but am not myself a thought; I am aware of feelings and sensations but am not myself a feeling or sensation; I am aware of perceptions but am not myself a perception. Whatever the content of experience, I know or am aware of it. Thus, knowing or being aware is the essential element in all knowledge, the common factor in all experience.

— Rupert Spira

from The Nature of Consciousness: Essays on the Unity of Mind and Matter