insights gained from a mind lost

I was sitting in the hospital and looking at the limestone wall. I started thinking about the time when this wall was probably some part of a much alive sea floor, buzzing with little creatures in a long-gone world without consciousness.  And then I looked at me, at my hands, at the people queuing up in front of Starbucks, or concentrating on their smartphones, in our world of consciousness. If you lose your eyesight, your other senses will awaken, take over and become much sharper, more accurate; your awareness shifts. What happens if you 'lose' your most dominent sensory organ - your mind; what happens if you cannot think anymore. What would you awaken to, what world would you discover if you lose your consciousness - if you lose your self?