What is the time and origin of posting Spring Festival couplets and door gods?

1, the time to post Spring Festival couplets and door gods is New Year's Eve.

2. Origin:

According to legend, once Emperor Taizong was seriously ill, he heard a ghost calling outside the door and stayed up all night. So he asked the two generals to stand by with weapons in their hands, and there was no ghost harassment the next night.

Later, Emperor Taizong had the images of these two generals painted and pasted on the door, and this custom began to spread widely among the people. Later, in addition to the past peace, people also regarded Qin and Weichi Gong, two military commanders in the Tang Dynasty, as door gods.

The ancients thought that there were two door gods on the gate, and all monsters would be afraid. In the folk, the door god is a symbol of justice and strength. The ancients thought that people with strange looks often had magical temperament and extraordinary skills.

They are honest and kind, and it is their nature and responsibility to catch ghosts and demons. Zhong Kui, a ghost hunter who is highly regarded by people, is such a strange look. Therefore, the folk door gods are always glaring and ferocious, holding all kinds of traditional weapons in their hands, ready to fight against ghosts who dare to come to the door.

Extended data:

Precautions for posting Spring Festival couplets and door gods:

1. Don't paste Spring Festival couplets left and right: when pasting Spring Festival couplets, paste the upper couplets on the right and the lower couplets on the left. The left and right sides are bounded by facing the gate or pilaster. The last word of the first part must be the end of "Yi Sheng" (three tones and four tones in Mandarin), and the second part is the end of "Ping Sheng" (one tone and two tones in Mandarin).

2. Don't stick the doorman upside down: the doorman is usually two figure paintings, which are posted on two doors, that is, one on one door. When pasting, pay attention to the fact that the faces of the two characters should be opposite, and don't paste them upside down. At present, most families are a door, so when sticking to the door, only two faces can be stuck to a door, which will be a bit insufficient. Suggest posting a blessing.

3. The word "fu" can't be posted casually: the word "fu" on the gate means accepting and welcoming blessings. The entrance and exit of the main entrance is a very solemn place, so the word "Fu" on the main entrance or the main entrance should be posted correctly, dignified and generous, and not oblique. If you stick the word "Fu" on other indoor furniture or decorations, you should stick it upside down, indicating that you are home.