Lilac knot is usually used to express sadness, because lilac knot is actually the bud of lilac, which looks very similar to people's sadness, so it is often used to express sadness. There is also a kind of knot, also called lilac knot, which fixes one end of the rope in one place for climbing and descending.

Lilac is a common image in China, and it also has a relatively fixed meaning. Just as folding willow, bright moon and plum blossom all have fixed symbolic meanings. The ancients found that lilac knots (that is, lilac buds) are very similar to people's worries, so they are often used to express a complex of sadness.

For example, Niu Qiao's "Since Nanpu Bie, I am worried about seeing lilac knots", Li Shangyin's "Bananas don't show lilac knots, but they are worried about each other in the same spring breeze", and Li Jing's "The bluebird doesn't spread the news outside the cloud, and the lilac knots in the rain" all use lilac as a metaphor for sadness. Dai Wangshu chose the image of lilac here, which is also used to express his endless sorrow and confusion.

Types of knots

There are many kinds of knots, such as ponytail, bow, auspicious knot, diamond knot, etc. The ponytail is mainly used for the ending of wenwan, also called "Fortune Festival".

Diamond knot is the most common kind of knot. Besides being woven into a rope, it can also be used as a fixed knot for pendants. Besides its fixing function, it is also beautiful in appearance.

In ancient times, people used knots to keep notes. At present, knots have been widely used, such as curtains, purses, sachets and bracelets.