When the renowned Oglala warrior Crazy Horse was twenty years old, he received the vision that came to define his life. After fasting for several days, he found himself staggering down a hill toward a small lake. He collapsed in the knee-deep water, and once he’d struggled to his feet and started back to shore he saw a man on horseback rise out of the lake. “He told Crazy Horse,” the interpreter Billy Garnett recalled, “not to wear a war bonnet; not to tie up his horse’s tail.” Traditionally a Lakota warrior tied up his pony’s tail in a knot. The man from the lake insisted that a horse needed
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