Rumor has it that there is a predestined relationship. What does it mean that the old man has a red line at his door?

Fate will come naturally. The saying that the old man leads the red line means to match the bridge. The saying of holding the red line comes from ancient myths and legends in China. It is said that Yue Lao, who is in charge of marriage, engaged men and women with red lines. If you say it, there will be fate, and it will naturally come to express fate. Yue Lao keeps the red line, so it won't be chaotic.