What does the ancient name Nacai mean?

The ancient wedding process has the theory of "six rites", which refers to the six steps of accepting gifts, asking for names, accepting gifts, accepting emblems, asking for dates, and welcoming in person. The so-called "acceptance" means that the man invites a matchmaker to go to the woman's home to propose marriage. According to ancient rituals, before the offer is made, the man has to ask a matchmaker to go to the woman's house to find out the news. Only after the woman's family agrees can the offer be made. "Nacai" is followed by "asking for the name", that is, the matchmaker asks the woman's name, age and "horoscope", and uses divination and fortune-telling to see if the man and woman will be in conflict with each other, and whether there are other reasons that are not suitable for forming a couple. In some places, "asking for names" is also called "Guo Xiao Tie" or "He Ba Zi".