The formation of Lantern Festival custom has a long process. According to general 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 Lantern Festival on the fifteenth day of the first month is indeed a folk festival after the Han and Wei Dynasties.
The custom of burning lanterns on the fifteenth day of the first month is related to the eastward spread of Buddhism. During the Tang dynasty, Buddhism flourished, and officials and ordinary people generally "lit lanterns for the Buddha" on the fifteenth day of the first month, so Buddha lanterns spread all over the people. Since the Tang Dynasty, the Lantern Festival has become a legal thing and has gradually become a folk custom.
According to "A Brief History of Monks", Buddha Sakyamuni appeared on February 30, 65438, that is, on the fifteenth day of the first month in Dongtu. In order to commemorate the Buddha's change of god, a lantern burning ceremony will be held on this day.
When Emperor Hanming came to lecture in the East, Morten Zhuflange ordered Emperor Hanming to put up lanterns at 15 o'clock in the first month of the Buddha's transition, and personally went to the temple to decorate the lanterns to show his respect for the Buddha.