Program Note: Make sure to watch Gary Tuchman's report tonight on AC360° at 10 p.m. ET.
The people who died Thursday at a spiritual resort in Sedona, AZ had spent time in a "sweatbox" similar to what Native Americans and other cultures have used for prayer and purification rituals throughout history.
In North America, most Native American tribes use the term "sweat lodge" to refer to a dome-shaped structure where the intimate ritual of the sweat takes place.
Gary Tuchman visited a sweat lodge in Cornville, AZ, just outside of Sedona, to report on the ritual.
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