Wikipedia
Yuwipi
Yuwipi is a traditional Lakota healing ceremony. During the ceremony the healer is tied up with a special blanket and ropes, and the healer and their supporters pray and sing for the healing of the person who has asked for the ceremony. The ceremony may be performed for one person at a time, or for a small group of people together, depending on the severity of the case and the strength and ability of the medicine man leading the ceremony.