Only the dreamer has illusions and the dreamer can never wake up. The doubling of consciousness is such an illusion. If you make the interior observation which would be expressed by saying, 'I am conscious', you are submitting to a subtle doubling of consciousness, observing the observer and identifying the two points of view, one real and not believed in and one ideal and believed in. Whatever you believe in can only be an idea, belief being a concomitant of ideas, and ideas are only consciousness, but not as ideas. Make the observation that you are conscious, it's quickly done, and what have you observed? How did you know to place the terms so surely? Here in the place where you live, the habitual triangulation, an interpretation of certain fuzzy sensations moulded into a dream figure, verified, endearing, but utterly incapable of doing what you just did.