75p
When someone is awake, we usually call him conscious, but pure awareness still exists even when he is under anaesthesia. One must mentally separate pure consciousness from the objects in it, such as the waking/dream, which is an object to the soul/Ataman which is the true self.
The self does not confine it to the body. Self is like a looking glass in which waking/dream [all bodies, all the universe appears]. The self must not be limited to this or that point in space.
The word Consciousness is somewhat misleads. In pursuit of truth it means "Consciousness of the waking and dream, as one thing, and pure consciousness, as another. Deep sleep is the nearest to understand pure consciousness. Not that the waking/dream experience is kept out, but one don't and can't see it as separate because it is reabsorbed into the self/soul.
No one knows the dimensions of the mind. All space is in the waking/dream only, not outside of it. All imagination is possible within the waking/dream.