I've read that the majority of our brain's processing power goes toward maintaining us spatially--making sure we don't fall, making all sorts of gravity calculations. Walking is, after all, perpetual falling and rescue. The websites I have read say around 85% of brain usage is taken up so.
This is one of the great sides of Flotation Tanks. Not only does it cut off all sensory stimulation, but the buoyant saline waters keep you perfectly afloat, essentially negating the effects of gravity on the brain. The result is an immediate and ultra-intense theta state.
I've always wanted to try one of these. Supposedly, one hour in a tank is equivalent to four hours of sleep. I wouldn't mind sleeping in one of these for two hours every day instead of having a bed!! May the bedroom become a tankroom! The flotation tank is probably the most powerful tool available for altering consciousness. God, how I wish for one of these...
