Dan Communal House

The Dan Communal House Festival has existed since before 1945. Before 1945, the festival was held from the 11th day of the first lunar month to the 12th day of the first lunar month. Through historical ups and downs, the festival had periods when it was suspended; in 1945, because the village was burned by the enemy, the Dan Communal House did not escape either. Later, in 2010, when the communal house was rebuilt, the festival was held again, and to this day the festival is held for only 2 days, the 11th and 12th days of the first lunar month. The main ceremony is on the 12th day of the first lunar month.

At Dan Communal House, the Three Holy Deities are worshipped, including Holy Lord Tan Vien Son—also commonly called by the people Tan Vien Son Thanh or Son Tinh—who is one of the four saints honored as the 'Four Immortals' in Vietnamese folk beliefs. For thousands of years, the image of the god of Ba Vi Mountain has become an immortal symbol of strength, wisdom, and the spirit of mastering nature. The whole Ba Vi region worships him, and Dan Communal House is no exception. According to historical records and legends, Holy Lord Tan was originally named Nguyen Tuan, born in the Ba Vi mountain region. From childhood, he showed extraordinary intelligence, extraordinary strength, and compassion. The local people regarded him as a guardian deity who helped the weak and protected peaceful life from natural disasters.

Ba Vi Mountain is therefore regarded as the 'sacred land' of Holy Lord Tan. In folk beliefs, this place is a connection point between heaven, earth, and people, where deities reside and shelter the people.

b. Description of the forms of expression, practice process, material and spiritual products created in the process of practicing the intangible cultural heritage, related cultural space, etc.:

Not only limited to legend, the image of Tan Vien Son Thanh has penetrated deeply into the spiritual life of the Vietnamese people. Hundreds of communal houses, temples, shrines, and palaces have been built to worship him, stretching from Ba Vi and Son Tay to many regions of the northern plains. This is clear evidence of the enduring vitality of folk beliefs. In the belief system, Holy Lord Tan is regarded as an agricultural deity. People often pray to him for 'favorable rain and wind, and bumper harvests.' When facing drought or flood, villagers come to the temple to pray for his protection. This shows strong faith in Saint Tan's protective role in daily life.

At Dan Communal House, Holy Lord Tan Vien Son has been worshipped for generations. Through many generations of ancestors, he remains a belief regarded as the agricultural deity, a deity carrying the power of solidarity, human wisdom, and harmony with nature in the minds and consciousness of the people here. The festival is also held to commemorate the Holy Lord. The Dan Communal House Festival in the past was held once every two years.