The sound of "pour" is "arrival", which means arrival. Posting the word "福" during the Spring Festival, whether now or in the past, expresses people's yearning for a happy life and their wishes for a better future. In order to more fully reflect this yearning and wish, Chinese people simply paste the word "福" upside down, which means "happiness has fallen" and "blessing has arrived".
It is said that the custom of sticking the word "福" upside down came from the Palace of Prince Gong in the Qing Dynasty. One year on the eve of the Spring Festival, in order to please his master, the chief steward wrote many words "福" as usual and asked people to paste them on the doors of the warehouse and the palace. A family member mistakenly pasted the word "福" upside down on the door because he was illiterate. . For this reason, Prince Gong Fujin was very angry.
Thanks to the eloquence of the butler, he knelt on the ground and said servilely: "I often hear people say that Prince Gong has a long life and good fortune. Now that the good fortune has really arrived, it is auspicious. It's a sign." After hearing this, Fujin thought to himself, no wonder the passers-by said that Prince Gong's residence was full of good fortune. He said the auspicious words a thousand times, and the gold and silver increased by thousands. When he was happy, he rewarded the housekeeper and the family member who gave him the bad luck.
Afterwards, the custom of pasting the word "福" on it was spread from high-ranking officials to ordinary people's homes, and all passers-by or urchins were encouraged to say a few words: "Luck has come, blessing has come!"
Extended information:
The historical origin of the word "福": "福" is one of the oldest characters, with a history of about three thousand years. The word "福" in oracle bone inscriptions is the shape of a wine vessel placed in front of a god, because the ancients used wine to symbolize a wealthy life.
The current word blessing is composed of Shi, Yi, Kou and Tian: Shi refers to gods; Tian refers to farming and hunting; Yi, Tao stands in one, creates heaven and earth, and transforms into all things; mouth, Refers to food; pasting the word "福" on the door. According to written records, it can be seen that the custom of pasting the word "福" has been around since at least the Southern Song Dynasty and has a long history.
Baidu Encyclopedia—Fu Dao