Consciousness is a much smaller part of our mental life than we are conscious of, because we cannot be conscious of what we are not conscious of. How simple that is to say; how difficult to appreciate! It is like asking a flashlight in a dark room to search around for something that does not have any light shining upon it. The flashlight, since there is light in whatever direction it turns, would have to conclude that there is light everywhere. And so consciousness can seem to pervade all mentality when actually it does not.\n\n The timing of consciousness is also an interesting question. When we are awake, are we conscious all the time? We think so. In fact, we are sure so! I shut my eyes and even if I try not to think, consciousness still streams on, a great river of contents in a succession of different conditions which I have been taught to call thoughts, images, memories, interior dialogues, regrets, wishes, resolves, all interweaving with the constantly changing pageant of exterior sensations of which I am selectively aware. Always the continuity. Certainly this is the feeling. And whatever we're doing, we feel that our very self, our deepest of deep identity is indeed this continuing flow that only ceases in sleep between remembered dreams. This is our experience. And many thinkers have taken this spirit of continuity to be the place to start from in philosophy, the very ground of certainty which no one can doubt. Cogito, ergo sum.\n\n It is much more probable that the seeming continuity of consciousness is really an illusion, just as most of the other metaphors about consciousness are. In our flashlight analogy, the flashlight would be conscious of being on only when it is on. Though huge gaps of time occurred, providing things were generally the same, it would seem to the flashlight itself that the light had been continuously on. We are thus conscious less of the time than we think, because we cannot be conscious of when we are not conscious.

• consciousness
• illusions
• self-consciousness
• the fourth way
• life
• time
• experience
• self
• identity
• light
• philosophy
• analogy
• sleep
• doubt
• spirit
• dreams
• other