Tsechu is a three-day festival of religious ceremonies and costumed dances. Held annually in each district or dzongkhag of Bhutan on the tenth day of a month of the lunar Tibetan calendar. Tsechu means "tenth day" and is used in much the same way as "festival" is used in English. Many of the dances performed at the tsechu are designed to teach lessons about how one's behavior on earth affects the afterlife, while others are believed to influence the actions of the spirits or to purify sacred ground.