About the materials of the Lantern Festival,

The formation of Lantern Festival custom has a long process. According to historical data and folklore, the fifteenth day of the first month was paid attention to in the Western Han Dynasty. On the night of the first month, Emperor Wu of the Han Dynasty offered sacrifices to "Taiyi" in Ganquan Palace, which was regarded by later generations as the first sacrifice to the gods on the fifteenth day of the first month. However, the fifteenth day of the first month is indeed a folk festival after the Han and Wei Dynasties. The introduction of Buddhist culture in the Eastern Han Dynasty is of great significance to the formation of Lantern Festival customs.

It is also said that the Lantern Festival originated from the Torch Festival. In the Han dynasty, people held torches in rural fields to drive away insects and wild animals, hoping to reduce pests and pray for a bumper harvest. To this day, people in some areas in southwest China still use reeds or branches as torches on the 15th day of the first month, and hold them high in groups and dance in fields or grain drying fields. Since the Sui, Tang and Song Dynasties, it has been in full swing. Tens of thousands of people took part in singing and dancing, from faint to dark. With the changes of society and times, the custom of Lantern Festival has changed greatly, but it is still a traditional folk festival in China.

Another way of saying it is that the custom of burning lanterns in Lantern Festival originated from the "ternary theory" of Taoism; The fifteenth day of the first month is Shangyuan Festival, the fifteenth day of July is Zhongyuan Festival, and the fifteenth day of October is Xiayuan Festival. The officials in charge of the upper, middle and lower elements are heaven, earth and man respectively. The celestial officials are happy and the Lantern Festival should be lit. The festivals and customs of Lantern Festival have been extended and expanded with the development of history. As far as the length of festivals is concerned, there is only one day in Han Dynasty, three days in Tang Dynasty and five days in Song Dynasty. In the Ming Dynasty, lights were lit from the eighth day of August until the seventeenth night of the first month, a total of ten days. Connected with the Spring Festival, it is a city during the day, full of excitement, and brightly lit at night, which is spectacular. Especially the exquisite and colorful lights make it the climax of entertainment activities during the Spring Festival. In the Qing Dynasty, there were more "hundred operas" such as dragon dancing, lion dancing, dry boating, walking on stilts and yangko dancing, but the festival period was shortened to four to five days.