What are the swearing-in ceremonies?

Chengyi has a standard etiquette procedure, that is, on a voluntary basis, through consensus, choose an auspicious day of the zodiac, hang Guan Gong and other gods in a place that everyone thinks is more suitable, such as the ancestral temple, and hum three sacrifices, namely pork, fish and eggs (one for each person) and a live chicken (the male is a rooster and the female is a female). Everyone sends out a copy of Jin Lan Spectrum, writes down everyone's name in chronological order, and presses their fingerprints. After the ceremony, everyone will bring a wick and "Jin Lan Music". Then, kill the chicken, drop the chicken blood into the red wine, pierce the middle finger of everyone's left hand (the woman's right hand) with the needle tip, drop the blood into the red wine, stir it evenly, sprinkle three drops on the ground first, and finally take a sip in order of age, and put the rest in front of the statue of Guan Gong. This form, some are also called "blood alliance". There is no limit to the number of people wishing, regardless of gender or age, but it must be an odd number. In the same year, the same sex became sworn, with men called brothers and women called sisters. It is usually carried out in adolescence, and most of them are like-minded, or in the same boat, or have their own needs. In the old society, there were many rituals and customs of becoming sworn: relatives did not become sworn; It is the in-laws who do not become sworn; Those who have a generation gap do not become sworn; Those who do not agree with the eight characters do not become sworn; Those who break the clan rules do not become sworn (if they made enemies with other clans before, they vowed to make rules not to marry or marry a certain clan); Those who fail the swearing-in ceremony are not formally sworn in, and so on. With the progress of society and the improvement of civilization, people think that as long as they get along well, they don't have to stick to a certain form. Of course, in reality, there are still some young people who are sworn and relatively indifferent to the old etiquette. The ceremony is generally simple, mostly oral oath. According to etiquette and custom, adults swear in front of Guan Gong statue, "ancestral temple" or other gods. Young people want to be allies, generally they have to get the consent of all their parents before they can take the oath, because their elders are more experienced and cautious.