The ceremonies and games in festivals have strongly agricultural aspects. The custom of water welcoming in Tien La, Bong Dien, Quang Lang festival, etc., is popular in agricultural festivals in Southeast Asia. In Keo festival, people have a habit to row a boat on land to finish festival. Mien village festival has game for every class such as farmers, teachers, workers, traders to take part. In ceremonies to worship tutelary God, they are memorized for helping local people to reclaim wasteland, set up hamlets and develop farms, etc.