“After about 10-15 minutes, I decided to fully close the door to the tank. A few minutes later I was seeing rainbows of colour swirl and stream past my body. I felt like I was slowly flying upward through the solar system. It was so real. I saw stars and planets, each direction I turned. I wasn’t sure where I ended and the rest began, but it made me realize that I am not my possessions, or my thoughts… I realized that I’ve gone my entire life without really letting go… I never let go… I’m always trying to hold on…”
This is the account, admittedly a rare one, of someone’s first session in a float tank. Responses to an hour and half in sensory restriction range from psychedelic, mystical and out-of-body experiences, such as the one described above, to the arousal of primal fear and general discomfort.