What is the background and emotion of red bean words?

Background: The lyrics are taken from the 28th chapter of A Dream of Red Mansions, which is the lyrics of a ditty sung by Jia Baoyu.

Emotion: It shows the situation that young people in love are distressed by love.

Red bean is acacia bean. In the poem Red Bean written by Wang Wei in the Tang Dynasty, there is a sentence of "take home an armful, for my sake, as a symbol of our love", which is often used to refer to acacia in poetry, and here refers to blood and tears. The first sentence, "I can't stop loving my heart and tears and throwing red beans", points out the love theme of the whole song. The following uses a series of parallelism sentences to show the young people in love who are distressed by love.

The lyrics of the song

Endless lovesickness, blood and tears, throwing red beans

Unfinished spring flowers, full of paintings

Unstable sleep, screen window, wind and rain, after dusk

Can't forget new worries and old worries

Can't swallow jade grains, gold grains, choking my throat

Can't see the thin in the diamond mirror

Can't open my brow, and it leaks even more

It's like a castle peak that can't be covered.

The green water keeps flowing.