Now suddenly there was nothing but a world of cloud, and we three were there alone in the middle of a great white plain with snowy hills and mountains staring at us; and it was very still; but there were whispers.
Black ElkCrazy Horse dreamed and went into the world where there is nothing but the spirits of things. That is the real world that is behind this one, and everything we see here is something like a shadow from that world.... It was this vision that gave him his great power, for when he went into a fight, he had only to think of that world to be in it again, so that he could go through anything and not be hurt
Black ElkIt is good to have a reminder of death before us, for it helps us to understand the impermanence of life on this earth, and this understanding may aid us in preparing for our own death. He who is well prepared is he who knows that he is nothing compared with Wakan-Tanka, who is everything; then he knows that world which is real.
Black Elk