The sweat lodge or sweat house (also called purification ceremony, ceremonial sauna, or simply sweat) is a ceremonial or ritual event in some cultures, particularly among some North American First Nations, Native American, Scandinavian, Baltic and Eastern European cultures. There are several styles of structures used in different cultures; these include a domed or oblong hut similar to a wickiup, a permanent structure made of wood or stone, or even a simple hole dug into the ground and covered with planks or tree trunks. Stones are typically heated and then water poured over them to create steam. In ceremonial usage, these ritual actions are accompanied by traditional prayers and songs.
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