All the Pretty Horses Death Quotes

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Quote #4

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 horses 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 the horses that ever were. (1642)

By contrast, the veteran Luis also says there can be no communion among men like that among horses. But why might this common soul be a "terrible thing to see"? What could be shared among horses, passed down through different incarnations, that could be so awful?

Quote #5

We're okay, whispered Rawlins. We're okay.

John Grady didn't answer. He almost reached to pull down the front of his hatbrim but then he remembered that they had no hats anymore and he turned and climbed up on the bed of the truck and sat waiting to be chained. Blevins' boot was still lying in the grass. One of the guards bent and picked it up and pitched it into the weeds. (2682)

What do you make of the way the guard pitches Blevins' stray boot, which he had tried to get while he was being led away to be shot? Do these details make Blevins' death seem more or less significant, and why?

Quote #6

He knew the cuchillero [knife-wielding assassin] had been hired because he was a man of reputation and it occurred to him that he was going to die in this place. He looked deep into those dark eyes and there were deeps there to look into. A whole malign history burning cold and remote and black […]. The knife passed across [John's] chest and passed back and the figure moved with incredible speed and again stood before him crouching silently, faintly weaving, watching his eyes. They were watching so that they could see if death were coming. Eyes that had seen it before and knew the colors it traveled under and what it looked like when it got there. (2993)

The cuchillero is clearly not the best dinner date. Whose death might he be watching for here? Why might his history be mentioned but not explored here?