What is the function of folk festivals?

These traditional folk festivals are an integral part of the long history and culture of the Chinese nation, as well as a concentrated display of history and culture, which helps to strengthen the cohesion of the Chinese nation, pass on the traditional culture, and promote the economic and cultural exchanges of the various ethnic groups in China.

Traditional Chinese Folk Festivals Citing Spring Festival, the birthday of the God of the Road, Lantern Festival (Shangyuan Festival), Spring Dragon Festival (Dragon Head Raising), Cold Food Festival, Qingming Festival, Lixia Festival, Dragon Boat Festival, Tian Kuang Festival, Festival of Turning the Scriptures, Auntie's Day, Torch Festival, Tanabata (Beggar's Festival), Mid-Yuan Festival (also known as: the Ghost Festival, Buddhist: Yuanyuan Festival), Ghost Festival, Dizang Festival, Mid-Autumn Festival, Chung Yeung Festival, Ancestors' Festival, Winter Festival, Cuoshi Festival, Lapa Festival, New Year's Eve, New Year's Eve, Hui Festival and so on.