According to the book Traditional Vietnamese Prayers - Culture and Information Publishing House, according to ancient customs, on the first day and the evening of the fifteenth day of every month, Vietnamese families often hold ceremonies to worship family gods and ancestors to pray for everyone in the family to be healthy, peaceful, lucky, successful...
The 15th day of the 12th lunar month has a special meaning as it is the last full moon day of the year. On this day, families often express gratitude, remember their ancestors, pray for peace and look forward to the moment of transition between the old year and the new year.
December is often called "the month of honey" with the meaning of reminding people to be careful before the last days of the year, to avoid bad luck.
According to folk beliefs, people should avoid the following things on the 15th day of the 12th lunar month to avoid bad luck and bring peace and luck:
Avoid cutting hair
The ancients believed that cutting hair on the 15th or 1st day of the lunar month could cause wealth and luck to disappear throughout the month. Hair is an important part of the body, closely related to the spirit and health of a person. Therefore, cutting hair is considered an act that brings bad luck.
Avoid breaking
Breaking things on holidays is considered an unlucky omen. Therefore, on the 15th day of the 12th lunar month, you should try not to break things, especially dishes, cups and bowls. The ancients considered it a sign of family discord and disharmony.
Avoid borrowing
According to popular belief, borrowing at the end of the year affects the financial fortunes of the new year. In particular, debt that lasts from year to year is a sign of difficulties and mounting debts. Therefore, you should try to pay off your debts and not borrow in the last month of the year to ensure a peaceful and favorable new year.
In reality, December is the time when families need to spend a lot of money to prepare for Tet and visit home. You should not borrow money at this time to avoid causing embarrassment and trouble for others.
Avoid arguing
Arguing and conflicting in the last month of the year reduces good luck. This is not something that should happen at the end of the year, it can negatively affect the fortune in the new year, bringing more trouble into the house. Therefore, it is best to keep the peace and avoid arguing in the last month of the year, especially on the 15th day of the 12th lunar month.
Avoid picking up dropped money.
At the end of the year, many families hold ceremonies and scatter coins to pray for good fortune or to ward off bad luck. Therefore, the ancients believed that picking up lost money could unintentionally bring bad luck and misfortune home.
Avoid fishing
Not only on the 15th day of the 12th lunar month, fishing on a full moon day in general is believed to bring bad luck, due to disrupting the energy balance of nature.
Abstain from sex
According to the Su Nu Kinh, having sex on the full moon day can disrupt the energy balance, negatively affecting reproductive health and vitality. Therefore, men and women should abstain from sex on this day.