It means a long-lasting marriage.
This is an auspicious sentence uttered when "going up" in a traditional wedding: "One comb to the end, two combs to the white hair to the eyebrows, three combs to the children and grandchildren, four combs to the four silver bamboo shoots. "Biaoqi." The meaning is to wish the couple a happy marriage.
"Shangtou" is a very particular ritual. You need to use a new comb to comb your hair. The person who helps "Shangtou" must be a "full blessing person", that is, this person has all six relatives and a family full of children. .
Extended information
The wedding ceremony
It is usually completed the night before the wedding or before the ceremony on the wedding day, symbolizing the new couple entering adulthood. Start organizing a new family and take on the glorious mission of spreading branches and leaves.
Of course, as the highlight of the ceremony, it is necessary to choose a good time. Generally, the man is half an hour earlier than the woman. Beforehand, both parties need to bathe with green pomelo leaf water and change into new underwear. Pajama pants. When you go to a place where you can see the moonlight, the lucky woman (usually the elder in the family above the man and woman, who requires parents to be alive, children to be alive, and the husband and wife to be harmonious) will help him comb his hair.
The bride's hair will be combed into a bun, indicating that she will marry as a wife and enter the adult stage. While combing your hair, you will say auspicious words. Finally, you need to tie the hinoki and red headband on the groom or bride's head. This is the ceremony.
Items that need to be prepared for the wedding
The woman: comb, grate, needle, thread, dragon and phoenix candle, dragon and phoenix scissors, mirror, red head rope, hinoki cypress, descendant ruler.
For the man: pointed comb, mirror, dragon and phoenix candle, descendant ruler, red head rope, hinoki cypress, dragon and phoenix scissors, three bowls of glutinous rice balls (nine pieces in each bowl), and then eat together with family members and brothers.
Baidu Encyclopedia--Traditional Chinese Wedding
Baidu Encyclopedia--Guangzhou Wedding Customs