Why does Tomb-Sweeping Day have the custom of "swinging"?

Folklore experts said that "swinging" originated from folk works and prevailed in the Tang and Song Dynasties. Tomb-Sweeping Day swings, which is the favorite of ancient women. Zhao Zhi Heng, an expert on swinging custom in Tomb-Sweeping Day and director of Tianjin Astronomical Society, said that as early as primitive society, our ancestors often climbed vines and trees to get food, and created swinging activities in their work. The earliest folk swing activity was called "Qian Qiu". Legend has it that it was created by Shanrong people in the north. At first, it was just a rope, swinging around with it. Later, Qi Huangong's northern expedition to Shanrong brought Qian Qiu into the Central Plains. Emperor Wu of the Han Dynasty contradicted this birthday speech and changed it to "swing", and later changed it to a swing with two ropes and one pedal. In the Tang and Song Dynasties, swinging gradually became a game played by women, and women's clothes and skirts fluttered with the wind, swaying and beautiful. Folklore experts say that swinging is still popular today. After winter, people put on spring clothes, set up swings and fly around in the air, which can relax, broaden their horizons, balance their body and mind, increase their courage and forget their troubles. "Without wind, a little girl is lighter than Yan." Swing is especially suitable for women. Traditional medicine believes that women are depressed, and swinging is a good way to relieve depression without drugs. Nowadays, children's parks and amusement parks also have "swings" for children to play. Swing, homophonic "grab migration", the earliest swing was mostly based on branches, and then tied with ribbons, and then developed into various rope+pedal swings. Swing was the most popular in the Tang Dynasty, and it was during this period that it developed into an important custom in Tomb-Sweeping Day.