I was fascinated that one could have such perceptual changes, and also that they went with a certain feeling of significance, an almost numinous feeling. I'm strongly atheist by disposition, but nonetheless when this happened, I couldn't help thinking, 'That must be what the hand of God is like.'
Oliver SacksAbout 10 percent of the hearing impaired get musical hallucinations, and about 10 percent of the visually impaired get visual hallucinations.
Oliver SacksEven when other powers have been lost and people may not even be able to understand language, they will nearly always recognize and respond to familiar tunes. And not only that. The tunes may carry them back and may give them memory of scenes and emotions otherwise unavailable for them.
Oliver Sacks