Tomb-Sweeping Day, why should we worship our ancestors?

First, Tomb-Sweeping Day's ancestor worship is a traditional custom of the Chinese nation, which has been passed down to this day. Tomb-Sweeping Day's ancestor worship originated from the Cold Food Festival. Because the dates of Tomb-Sweeping Day and Cold Food Festival are similar, they are combined into one, and the custom of ancestor worship in Cold Food Festival is preserved, which is the reason why Tomb-Sweeping Day worships ancestors. 2. Introduction to Tomb-Sweeping Day: It is said that the origin of Tomb-Sweeping Day began with the ceremony of "sweeping graves" by ancient emperors and generals, and later people followed suit. It is a fixed custom of the Chinese nation to worship ancestors and sweep graves on this day. Originally, the Cold Food Festival and Tomb-Sweeping Day were two different festivals. In the Tang Dynasty, the day of sweeping graves was designated as the Cold Food Festival. The correct date of the Cold Food Festival is from winter to the future 105, around Tomb-Sweeping Day. Because the two dates are similar, Tomb-Sweeping Day and Cold Food merged into one day. The custom of offering sacrifices to ancestors and sweeping graves in front of graves originated very early in China. As early as the Western Zhou Dynasty, people attached great importance to tombs. During the Qin and Han Dynasties, tomb sacrifice has become an indispensable ritual activity. When I arrived in Xuanzong of the Tang Dynasty, I designated cold food sweeping the grave as one of the "five rituals". Therefore, whenever Tomb-Sweeping Day comes, "the fields and roads are crowded with scholars and women, and the servants and beggars of soap merchants get their parents' graves." (Liu Zongyuan's Book with Xu Jingzhao) Grave sweeping has become an important social custom. As there are customs of offering sacrifices to ancestors, sweeping graves and hiking in Tomb-Sweeping Day in vast areas of China, it has gradually evolved into a traditional festival for China people to commemorate their ancestors by sweeping graves. From 65438 to 0935, the government of the Republic of China designated April 5th as a national statutory holiday in Tomb-Sweeping Day, also known as the National Tomb Sweeping Festival. On May 20th, 2006, with the approval of the State Council, Tomb-Sweeping Day was listed in the first batch of national intangible cultural heritage.