speakmnemosyne:

Lastly he said that he had seen the souls of horses and that it was a terrible thing to see. He said that it could be seen under certain circumstances attending the death of a horse because the horse shares a common soul and its separate life only forms it out of all horses and makes it mortal. He said that if a person understood the soul of the horse then he would understand all horses that ever were.
They sat smoking, watching the deepest embers of the fire where the red coals cracked and broke.
Y de los hombres? said John Grady.
The old man shaped his mouth how to answer. Finally he said that among men there was no such communion as among horses and the notion that men can be understood at all was probably an illusion. Rawlins asked him in his bad Spanish if there was a heaven for horses but he shook his head and said that a horse had no need of heaven. Finally John Grady asked him if it were not true that should all horses vanish from the face of the earth the soul of the horse would not also perish for there would be nothing out of which to replenish it but the old man only said that it was pointless to speak of there being no horses in the world for God would not permit such a thing.