They were entered through a hole in the roof. A stone bench for sitting lines the inside wall, sometimes interrupted by support columns for the roof. There was usually a hole or indentation in the floor, now called a sipapu, which symbolized the connection from birth with Mother Earth. Near the center was a fire pit. A ventilation shaft on one side, supplied floor-level air for the fire.
Among the modern Hopi, it is square-walled and above-ground, and are used for religious and spiritual ceremonies.
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