What does willow mean in traditional culture?

"Willow" harmonic "stay", in traditional culture often have the meaning of farewell, the traditional custom of willow send-off is one of the ancient way to say goodbye to each other. For example, in Wang Wei's poem "Sending Yuan Er to An Xi", "Yi Wei Cheng is drizzling with rain, and the willow color is new in the guest house." The opening of the poem hints at the writing context of sending off a friend with the cultural element of willow.

Because "willow" often symbolizes an unwillingness to part, this cultural element has also become a representative of the feelings of separation, homesickness, and longing for one's homeland. For example, in Li Bai's poem "Hearing the flute in the city of Luocheng on a spring night", "I heard the willow in the song this night, so I can't afford to miss my hometown." The willow refers to the feeling of homesickness.