I’m not saying that materialism is incorrect, or even that I’m hoping it’s incorrect. After all, even a materialist universe would be mind-blowingly amazing. Imagine for a moment that we are nothing but the product of billions of years of molecules coming together and ratcheting up through natural selection, that we are composed only of highways of fluids and chemicals sliding along roadways within billions of dancing cells, that trillions of synaptic conversations hum in parallel, that this vast egglike fabric of microthin circuitry runs algorithms undreamt of in modern science, and that these neural programs give rise to our decision making, loves, desires, fears, and aspirations. To me, that understanding would be a numinous experience, better than anything ever proposed in anyone’s holy text. Whatever else exists beyond the limits of science is an open question for future generations; but even if strict materialism turned out to be it, it would be enough.
Incognito by David Eagleman
On page 80 he discusses the various types of Synesthesia. If we have one variety, we are likely to have two or three. He explains that the feeling of music is one possibity that has been corroborated by neuroimaging experiments. Hey, hey. It’s not Just some bohemian recollection of a psychedelic experience.