Why were ancient matchmakers called Iceman?

For a long time, there are many nicknames about matchmakers, such as Yue Lao, Hong Niang, Zhang Jian and Zhike. Take the Iceman as an example, there is an interesting story. According to the Book of Jin, Xiaolian Linghu had a dream that she was walking on a frozen lake and talking to people under the ice, and suddenly woke up. Some fortune tellers explained this dream, saying that ice is yang, ice is yin, and yin and yang are also things; A scholar returns to his wife, but the ice is uncertain and the marriage is successful. You are on the ice, and you talk to people on the ice. This is a matter of duplicity, and the media is also involved. You should be a matchmaker and marry Bing. According to today's words, you can stand on the ice and talk to people under the ice, which symbolizes that you are reconciling Yin and Yang. To reconcile Yin and Yang is to be a medium, and you will be a matchmaker for others. But this media is not easy to do. It takes your enthusiasm to melt the ice and both men and women can get married. Since then, "Iceman" has been used as a matchmaker, and it is also called ice as a matchmaker. This is also reflected in vernacular novels, such as "Ancient and Modern Wonders" Volume 41. This kind of matchmaking is good for an iceman. Unless his daughter doesn't stop until she gets married, there will be many men and women. "And everyone is familiar with Jin Yong's novel" Eternal Dragon Slayer ".Two of them told the judge that Yin Susu and Zhang Cuishan made an iceman by Xie Xun and finally became a loving couple.