This is a typical festival of the Black Thai people in Yen Chau, held annually on a large scale. It deeply reflects their spiritual life, solidarity, and love of labour, expressing gratitude to ancestors and prayers for peace, prosperity, and happiness in the hamlets.

The festival begins with the ancestor worship ceremony when the hamlet elders and “thay mo” (shaman) prepare offerings such as sticky rice, chicken, stream fish, “ruou can” (wine drunk through bamboo straws), betel, areca, flowers, and incense, all respectfully arranged on the altar to show reverence to ancestors and deities. The shaman then scatters rice and sprinkles wine as an offering of thanks to heaven and earth. Everyone joins in offering and sharing the meal which symbolises unity and harmony within the hamlet.

Following the ancestor worship is the soul-calling ritual for “adopted children” — a unique spiritual custom of the Thai people in Yen Chau. The shaman, dressed in traditional attire and holding a wooden sword and a bunch of green leaves, chants the names of each “adopted child,” referring to those spiritually adopted and protected by the hamlet, clan, or deities.

The ritual is followed by the festive part, featuring the traditional “xoe” dance symbolising community unity and aspirations for a prosperous, happy life and a peaceful homeland. The festival also includes various folk games such as “tung con” (throwing a cloth ball through a ring), tug of war, “nem pao” (cloth ball tossing), love duet singing, and cooking contests, thereby creating a lively and joyful atmosphere.