The word "合卺" is unfamiliar to modern people. However, the "wine exchange" between the groom and the bride is very familiar to everyone who has been married or attended a wedding. "Hehuan" means that newlyweds drink Hehuan wine together in the bridal chamber. The word "卺" means "floating". A gourd is cut into two gourds, and the bride and groom each take one for drinking. This is called Hexin. The Hexin began in the Zhou Dynasty. Later generations used the gourd as a treat, and the gourd is a bitter and inedible food. , used to hold wine must be bitter wine. Therefore, the husband and wife drinking Hexin wine together not only symbolizes that the husband and wife have become one and have been married forever, but also has the profound meaning of letting the bride and groom share the joys and sorrows. As recorded in the "Book of Rites": "So when we are united, we share the same dignity and inferiority, and we are close to each other."

After the Song Dynasty, the ceremony of joining the 卺 evolved into the newlyweds drinking each other's cups of wine together. "Tokyo Menghualu: Marrying a Wife" records: The newlyweds "use two cups connected with colorful knots, and drink from each other's cup, which is called a cup. After drinking, they throw the cup and the flower crown and dry it under the bed. The cup is raised and closed. If it is auspicious, everyone will congratulate, and then the tents will be closed. "The symbolic meaning of this ceremony is profound.

Use colored silk or colored paper to connect two wine glasses. The man and woman change their names and each drinks a glass, which symbolizes that the couple will be connected and become one. Of course, in many cases, "only the bride is too shy to get a taste of it." (Republic of China: "Jie County Chronicles")

After drinking, throw the cup under the bed to see if it is in harmony. If the wine cup happens to be tilted up and closed, it symbolizes the man bending over and the woman tilting up, happy intercourse, and heaven. Over the earth, this harmony of yin and yang is obviously auspicious. During the period of the Republic of China, after people in Shanxi got married and worshiped heaven and earth, they would "leave into the bridal chamber. The son-in-law goes first, gets on the bed and steps on the four corners. The bride then enters, sits in the back corner of the bed, and drinks a cup of wine. It is the day of 'union'. After the day of the nun, there is still a day to pay homage to the ancestors and meet the yonggu." The waiting ceremony is usually performed on the day after the wedding." (Republic of China: "Fushan County Chronicle")

Today, at the wedding of young men and women, it is essential to exchange glasses of wine, but the form is much simpler than in ancient times. After each pouring the wine, the man and woman hook their arms together, look at each other, and drink the wine in one gulp amid warmth and joyful laughter, either in the bridal chamber or in the wedding hall, hotel, or restaurant. According to folk customs, drinking wine is held in the bridal chamber, so the marriage ceremony is connected with entering the bridal chamber. However, no matter how different the expressions of this custom are, the meaning and mentality are the same, and the knot will always be good and inseparable. It implies that it will have an impact on the long-term married life of newlyweds.