In the Tang Dynasty, New Year's Eve and the morning of New Year's Day went hand in hand, forming the custom of "observing the old age", that is, people have been celebrating the dawn of New Year's Day since New Year's Eve, staying up all night. At this time, thousands of families get together, have a big banquet, enjoy singing and dancing, burn paper money, worship ancestors, set off firecrackers and exorcise evil spirits.