Where we go when we go to sleep and why we go there is one of the great mysteries of the mind. Why the mind at times refuses to go there, despite the pleading and bargaining of its conscious owner, is a greater mystery still. We know that ever since REM evolved in the bird brain, the third of our lives we spend sleeping and dreaming has been a crucible of our capacity for learning, emotional regulation, and creativity. But the price we have paid for these crowning curios of consciousness has been savage self-consciousness, thought turned in on itself,… read article