For people interested in experiencing closed eye visuals without drugs, try sitting in a dark room with eyes closed facing a strobe light. ~3-10 Hz seems most e

For people interested in experiencing closed eye visuals without drugs, try sitting in a dark room with eyes closed facing a strobe light. ~3-10 Hz seems most effective. (Should go without saying, but this is not recommend for epileptics) The vague regular input to the whole eye causes your brain to look for patterns in the noise. Tested this on several friends and they all start seeing geometric fractal-ish patterns within 60 seconds. I've been hoping someone would manufacture affordable "strobe glasses" with a bunch of white leds that pulse at a rate adjustable with a simple knob, but I've looked for years and all of the options I've seen have been pretty pricey and include features of questionable utility. Seems like they could be made for ~$20 if there was enough of a market to make them at scale. I think they would be great for meditation. (See https://en.wikipedia.org/wiki/Mind_machine https://en.wikipedia.org/wiki/Mind_machine for more info. The turntable-driven Dream Machine was a particularly cool design)