Psychologists may have cracked an age-old mystery: the relationship between genius, madness and the doors of perception. They have identified one of the biological bases of creativity: creative people appear to be more open to incoming stimuli from the surrounding environment, unlike other... (via Kurzweil)

Reminds me of that lyric from Tommy, "Sickness will surely take the mind, where minds can't usually go. Come on the amazing journey, and learn all you should know."