Master Wang Yuan's "The West Chamber" is connected with branches: it is a metaphor that husband and wife are in love with each other and have deep feelings.

There is no doubt about love when you are married. -Su Wu, Minister of the Western Han Dynasty, "Don't Poem" and his wife's famous words

Other poems were written by Wu. Knot: A bundle of hair, when young. Love: Husband and wife love each other and kiss each other. Get married when you are young. Kiss each other, and you are passionate. Because they got married when they were young and lived together for a long time, they are soul mates, deeply attached to each other and share joys and sorrows. They are close, and each other has become a part of each other's life, and they are closely related, with mixed feelings of sadness and joy, some love and understanding, and no barriers and suspicions. This famous saying can be used to describe the deep feelings of the original couple. Because there is a saying in this poem that "knot hair is husband and wife", some later generations interpret "knot hair" as "marriage" and some call it "knot hair" or "wife hair".