What does the crown mean in the four customs of crown, marriage, mourning and sacrifice?

The coming-of-age ceremony of the Chinese nation is a coronation ceremony for men and a gift for women. According to the book, it was carried out in the Zhou Dynasty. According to the weekly system, men are crowned at the age of 20, but in order to take charge of state affairs as soon as possible, the Emperor of Heaven salutes earlier. Legend has it that Zhou Wenwang was crowned at the age of twelve and became king at the age of fifteen. The ancient coronation ceremony was held in the ancestral temple in February. Ten days before the coronation, the recipient should first indicate an auspicious day. If there is no auspicious day in ten days, the auspicious day in the next ten days will be chosen. Then inform relatives and friends of auspicious days. Three days before the coronation ceremony, the distinguished guests who presided over the coronation ceremony were elected by oath, and a "crown praise" was elected to assist the coronation ceremony. When saluting, the host (usually the father of the recipient), distinguished guests and the recipient should wear formal clothes. First add a crown, then give it a leather coat, and finally give it a title. After each coronation ceremony, the distinguished guests will read a congratulatory message to the recipients. The main idea of the congratulatory message is: on this beautiful and auspicious day, I will put on adult clothes for you; Please give up children's ambitions and cultivate adults' sentiments; Maintain dignity and cultivate virtue; I wish you a long life, lucky strike. Then, the recipient visits his mother. Then the distinguished guest answered the phone for him. In the Zhou Dynasty, characters were usually called "Bomou Mansion" (Bo, Zhong, Shu and Ji, depending on the level). Then the host sent the distinguished guests to the temple gate to make a toast. At the same time, give him a bundle of silk skins (five silks and two deerskins) and then offer meat. Those who get the crown put on their hats and dresses to visit the monarch and hold a ceremony of reeds (pheasants, etc. ) visit the township doctor, etc. If the father has passed away, the recipient of the crown should make a sacrifice to his father to show that the coronation ceremony will be completed before his father. After the sacrifice, I visited my uncle and then had a meal. This ceremony of conferring a crown, choosing words and meeting a gentleman changed from time to time and from place to place in later generations. It is held among people aged fifteen to twenty, and it varies from place to place.