http://www.all-art.org/early_renaissance/images/literature/dante/54.jpgThe next picture is from when the Glanton Gang was in Santa Cruz. Right after the door to the stable they were sleeping in shut, the souls began to glow. In the paragraph, the mare that shared the stable with them, "snorted and shied at this luminosity in beings so endarkened..." Basically, these murdering thiefs still had intact souls with which could give off their inner fire, or the fire of Creation that burned inside of them. Somehow their souls come alive and are visible for all inside to see.
This represents all of the ruined churches in the book. All of the ruined chuches the Kid finds are in Mexico and, being a symbol for religon, G-D, and order, means that this region devoid of structure and full of anarchy has no G-D. G-D does not reach into Mexico either because He can't or because He doesn't want to. "There were no pews in the church and the stone floor was heaped with the scalped nad naked and partly eaten bodies of some forty souls who'd barricaded themselves in this house of G-D against the heathen."
This last picture is of the last encounter of the Judge, Tobin, the idiot, and the Kid. They are at Carrizo creek where thousands of bones of dead sheep lie and where the Judge wounds Tobin. This is also where supernatural elements come out: the judge, the idiot, and the expriest seem to be able to appear and disappear at will. This leaves the Kid as the only person who can make a solid stand. When he goes to shoot the horses, the idiot is seen watching him and his head makes a 180 and his draw drops open like seem demon from hell. When he turns around form shooting the horses with the intent of killing the idiot, he finds nothing there. Throughout this entire ordeal, the sense of being in the middle of a battle between the forces of good and evil is certainly felt.