“Many floaters experience hallucinations as their brains respond to not getting sensory input. This is part of the vivid mental imagery I mentioned earlier—your brain is relaxed enough to visualize strong images you wouldn’t see normally.”—Belle Beth Cooper. http://blog.bufferapp.com/the-power-of-shutting-down-your-senses-how-to-boost-your-creativity-and-have-a-clear-mind
On Fringe, a sensory deprivation tank can activate your mental powers and even open a gateway to another universe. But what can floating in a dark warm tank do for you in real life? And why would people even want to do such a thing?
Sensory Deprivation: Meditation Isolation Chambers aka Flotation Tanks - amazing! At 1st my breathing was fast & my heart was pounding in the darkness. Weightless, the tank eventually seems as big as the universe. You can't tell which direction your body is floating. You can no longer feel your body, it totally "disappears". Nothing is left but your mind, your thoughts... and sometimes "I" would disappear in my thoughts. A separate "I" no longer existed. This was my experience. jc