On one occasion, Zhong Er was robbed of food by a follower on his way to avoid Jin Huigong's pursuit, so that there was no food to satisfy his hunger. In desperation, Zhong Er had to beg for food from a local farmer, but the farmer not only refused to give it, but also teased Zhong Er. Zhong Er, who hadn't eaten for many days, finally fainted from hunger. When meson saw this, he secretly cut off a piece of thigh meat and cooked it for Zhong Er. Zhong Er was very moved when he learned that, so he promised to Jiezitui that if he became the monarch of the State of Jin one day, he would definitely thank him.
Later, Zhong Er really became the monarch of the State of Jin and became a generation of wise king Jin Wengong. After he acceded to the throne, he did not forget his original promise to reuse meson push, but meson push took his mother to Mianshan first and became a hermit. Zhong Er repeatedly asked him to come out of the mountain, but failed to do so. Finally, Zhong Er set a fire to push mesons out of the mountain to Mianshan. However, even so, meson push still didn't go down the mountain, but was burned alive on the mountain. Zhong Er felt very guilty about this result, so he ordered a total ban on fire and only cold food on the day of meson memorial day.
This is the origin of the Cold Food Festival. Later, with the development of time, the Cold Food Festival, which only banned fire and ate cold food at first, gradually added more custom activities such as inserting willows, walking and swinging. Because the Cold Food Festival is only one or two days away from Tomb-Sweeping Day, it was gradually integrated into Tomb-Sweeping Day, so that most people only know Qingming and don't know cold food now.