I think I have told you, but if I have not, you must have understood, that a man who has a vision is not able to use the power of it until after he has performed the vision on earth for the people to see.
Black ElkAnd while I stood there I saw more than I can tell and I understood more than I saw; for I was seeing in a sacred manner the shapes of all things in the spirit, and the shape of all shapes as they must live together like one being.
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 Elk