"All the main nerve trunks are deadened, and out of the battered cortex curious dreamlike thoughts emerge. It is at this time that many men see visions. The eyes fasten on a cloud and the tired brain makes a face of it, or an angel or a demon. And out of the hammered brain strange memories are jolted loose, scenes and words and people forgotten, but stored in the back of the brain..." -John Steinbeck, Why Soldiers Won't Talk)