What are the customs of the ancients celebrating the Spring Festival found in the poem "January Day"?

Besides firecrackers, the spring breeze sends warmth into Tu Su, and every family always changes new peaches into old ones. -Wang Anshi in the Song Dynasty.

Commentary: Tu Su, also known as "Tu Su" and "Zhu Su", was the custom of drinking Tu Su in ancient Yuan Dynasty. People in the Yuan Dynasty drank Tu Su wine because of a legend or story: "Legend has it that it was the name of a grass temple. Once upon a time, someone lived in a grass temple. Every year except at night, they leave a patch in the well, let the bag soak in the well, take water on January, put it in a bottle, and drink it for the whole family to avoid catching the plague. Today, people have their own way. They don't know their names, but they are just called Tu Su. " (Don Hua.

Fu Tao: It refers to a mahogany board painted with two gods, God Tea and Lei Yu, or with their names written on it, which is hung on the door in the early morning of the first day of the first month of the first month to ward off evil spirits. This is also an ancient folk custom. "Always replacing new peaches with old ones" is a sentence pattern of compression and ellipsis. The new peach omits the word "character" and the old peach omits the word "peach", so they are used alternately because of the limitation of words per sentence. It means: the old peach character is replaced by the new peach character. The change of peach characters reveals the theme of "getting rid of the old and getting rid of the new"

Custom: set off firecrackers, drink Tu Su wine and hang peach symbols (equivalent to today's door-sticking gods and couplets)