The fourth day of the first month (also known as the fifth day of the first month) is related to the origin of the god of wealth, five immortals or five immortals: according to legend, there are five brothers whose initials are all "immortals", so they are called "five immortals". Rob the rich and help the poor before death, punish the evil and promote the good after death, and bless the poor. There are five temples of God of Wealth outside Andingmen in Beijing.

There is only one god of wealth, and four subordinates only make up a slap in the face. However, so many people want to get rich. Obviously, the supply is in short supply, so some people take the initiative to balance the contradiction between supply and demand, which has produced a new genre painting-"sending the god of wealth." On the fifth day, poor beggars form gangs, wear masks and pretend to be the god of wealth, which is called "sending the god of wealth".

According to China folklore, the fifth day of the first month is the birthday of the God of Wealth, so after the first day of the first month, the next most important activity is to meet the God of Wealth. On the night before God of Wealth's birthday, every household will hold a banquet to celebrate God of Wealth.