A Brief Foray Into Lucid Dreaming
Lucid dreaming is a highly desirable state of consciousness in which you realize you're dreaming, but you remain asleep. With practice, lucid dreamers can learn to control their dreams, fly around, breathe underwater, talk to Aristotle, go to a Jimi Hendrix concert, whatever they can conjure. Lucid dreaming was celebrated in cult films like Waking Life (my favorite movie ever), and there's an awesome list of other references on Remee's Kickstarter page.
Conventional wisdom holds that one way to begin lucid dreaming is to remind yourself that you're dreaming. That's what the Remee lucid dreaming mask is supposed to do. It uses a timer, and its red LEDs blink patterns over your eyelids while you sleep. If you time it right, allegedly, you'll see visual disturbances while you dream that will jar you into lucidity.
I've had one lucid dream that I can remember. I was about 18, visiting Hong Kong, jet-lagged out of my mind. I dreamt I was back at my old elementary school, which was uncanny enough that I realized I was dreaming. I immediately tried to fly. It worked for a few seconds. I got about 20 feet off the ground before my expectations about the laws of gravity set in, and I sank back to the ground, forgetting I was dreaming. It was briefly amazing, though. I've wanted to regain that power ever since.
Remee is a scam and here's why - Lucid Dreaming App