“I did not know then how much was ended.”

Speaking of the Massacre at Wounded Knee.
Black Elk Speaks (1961)
Context: I did not know then how much was ended. When I look back now from this high hill of my old age, I can still see the butchered women and children lying heaped and scattered all along the crooked gulch as plain as when I saw them with eyes still young. And I can see that something else died there in the bloody mud, and was buried in the blizzard. A people's dream died there. It was a beautiful dream.
And I, to whom so great a vision was given in my youth, — you see me now a pitiful old man who has done nothing, for the nation's hoop is broken and scattered. There is no center any longer, and the sacred tree is dead.