He replaced the gray of the walls with a darker shade by closing his eyes. It felt good to shut out some of the light. Not all, but just some. Just enough so there was a gray without images or threatening corners. Not the blackness that gives birth to those sudden flashes of stinging light that slashes your eyes, or the velvety darkness that thickens and become animated and flows and somehow moves around and over you. Just a soothing gray. Nothing to see.