For a hallucination is the appearance of something to a particular individual, unseen by others, which he believes to be part of the real world. In other words, what one tends to do under the influence of a psychedelic chemical is to become aware of being awarethat is to say: you turn your senses back on themselves.
And all these senses, as you begin to realize with psychedelics, are really one sense specialized in five different ways.
Once I was in this experiment, and I was looking at the mullions in windows… And of course they create the most extraordinary questions. If something alters your normal way of seeing things, your attention is diverted from what you see to seeing itself.
