What do snakes represent in Chaoshan song and dance?

This snake is Jie Zhen in the Water Margin.

Jie Zhen is a character in Water Margin, nicknamed the two-headed snake, and was originally an Orion in Dengzhou. He and his younger brother Jeb were framed and imprisoned by the landlord Taigong for hunting tigers, then escaped from prison and fled to Dengzhou, where they joined Liangshan. Liangshan ranks 34th when they get together, and should be the leader of the army. Fang La got caught and died in Wulongling, chasing the clock without lang.

Chaoshan song and dance is a folk dance of Han nationality in Chaoshan area. It has been circulating in Chaoshan for three thousand years. This kind of square dance combines drama, dance, martial arts and other elements; Be masculine and grand; Now it has become a way for Han working people to express happiness. This kind of square dance is singing and dancing.