Why are ancient matchmakers called "Iceman" and "Wako"

The ancients also called the matchmaker "Iceman". But why is it called "Iceman"? To understand this problem, we must first talk about the time when ancient scholars married. Ancient scholars generally chose to get married in mid-spring and February when the ice and snow did not melt. Because the ancients thought that this time was just the handover of Yin and Yang, the yang was just beginning to sprout, the yin was gradually disappearing, and everything was about to flourish, so getting married at this time was in line with the way of Yin and Yang and the law of the growth of all things in nature. After the ice melts, the busy farm work is about to begin. So it is not appropriate to hold a wedding after this period. The Book of Songs says, "A scholar should belong to his wife, not Bing Pan." Therefore, we can understand that the best time for ancient scholars to get married is when the ice is not flooded, that is, when the ice is not melted. Suoheng of Jin Dynasty combined ice with marriage when he interpreted dreams. There was an official in the Jin Dynasty who was very filial. He asked Suoheng to interpret dreams. Suoheng said: "Ice belongs to Yang and ice belongs to Yin, so the dialogue under the ice is about Yin and Yang. The Book of Songs says that scholars should get married before the ice melts, dreaming that the ice is about marriage, and you stand on the ice and talk to people under the ice, indicating that Yin and Yang are related, so you should do so. "