A small room several paces across, a green floor, blue walls and ceiling. A dim bulb overhead just out of reach. Beyond the walls, nothing; void without even

A small room several paces across, a green floor, blue walls and ceiling. A dim bulb overhead just out of reach. Beyond the walls, nothing; void without even a large expanse and stars to ponder. I've had a couple of lucid dreams end in that room, with the walls seeming to softly vibrate, due I suppose to the instabilities of my brain's simulation of the geometry. Deep despair threaten when I contemplated being stuck there, but I always had the hope that I could wake up and get back to this nice stable world of "reality" that we share.