The 29th day of the first month is a traditional folk festival unique to Fuzhou. "It is also known as the "Back Nine Festival", the "Filial Piety Festival" and the "Send the Poor Festival". Early in the morning on this day, every family uses glutinous rice, brown sugar, plus peanuts, jujubes, water chestnuts, sesame seeds, cinnamon and other ingredients. Cooked into a sweet porridge, known as the "ajiu congee", used to offer ancestors or gifts to friends and relatives. Married daughters, but also be sure to send a bowl of "au jiu congee", some also add too plane, eggs, pig's feet, etc., sent back to her mother's home, filial piety and honor their parents.

There are two ways of saying the origin of "over nine". One is also said to be related to the mother of Meilian. It is said that Meilian send porridge when it is exactly the 29th day of the first month, Meilian's mother at that time was exactly 29 years old, because of the evil deeds in his life was sent to the eighteen layers of hell suffering, people believe that she is "over nine", so in order to meet the good fortune, people give the age of nine people to eat too plane, in order to peace, health. Later, this custom was extended to the age of a multiple of nine.

Another said that the ancients thought that "nine" is the largest of the digits, only the "son of heaven" the emperor can be used, that is, the so-called "Nine and a half of the dignity", the general population is Can not bear, the saying is "difficult to carry the blessing", Fuqing dialect has "seven Xing eight sad nine" of the proverb, so the "nine" is a "Kan ". To pass this hurdle, only eat too plane will keep the peace, which has the "over nine" festival custom. This is said in Fuqing people since ancient times have been afraid of the old and sick people can not pass the custom of nine is also confirmed.

Therefore, Fuqing people are taboo when nine, that "nine" is the years of hardship, so, where the number of years nine (i.e., nine, such as nine years old, nineteen years old, twenty-nine years old, thirty-nine years old ......) or multiples of nine (i.e., dark nine, such as eighteen years old. twenty-seven years old, thirty-six years old, thirty-nine years old, thirty-nine years old) or nine times (i.e., dark nine, such as eighteen years old, Twenty-seven years old, thirty-six years old, forty-five years old ......) of people, the family should be cooked for its "au jiu congee" and too flat, in order to pray for its luck, remove bad luck, peacefully across the "nine" of the Threshold. Therefore, this festival is also called "Xiaojiu Festival" and "Arguing Nine Festival" (meaning to avoid the unlucky "nine"). Married women should also send a jar of "au jiu congee" for their parents to show that they do not forget their parents and filial piety and respect for their parents.