In the dictionary it saids "an attempt to achieve a vision of a future guardian spirit, traditionally undertaken at puberty by boys of the Plains Indian peoples, typically through fasting or self-torture."
In the United States, it was largely "white land-holding men" who controlled vast wealth and many businesses and had great influence on US finances during this time, since they had the most political power as well.
They stopped farming and growing crops on one location and started growing and farming crops at another location. This enabled the soil to recuperate and gain the required minerals which makes good soil also fertile.
