1. During the Spring and Autumn Period, Zhong Er, the son of the Jin Dynasty, was exiled. He was hungry and dizzy on the road, and the minister meson pushed him to eat the meat on his thigh. Later, my son Zhong Er became Jin Wengong, and the loyal minister forgot to recommend him. When Zhong Er remembered this incident, Jiezitui refused to be an official again and lived in Mianshan behind his mother's back. Zhong Er asked Yamakaji to force him out of the mountain, but the fire burned for three days and no one came out. He went up the mountain and found himself and his mother burned to death.

2. On the charred willow, there is a big fairy who writes a poem of blood. "cut the meat and serve the heart, may the Lord always know." Therefore, Zhong Er designated the day when Yamakaji was released as Cold Food Festival. The next day, Zhong Er climbed the mountain to pay homage and found that the old willow tree was resurrected. He named it "Qingming Willow", and named it Tomb-Sweeping Day, in order to pay homage and encourage himself to be diligent and clear.