Sadness-sadness, sadness, melancholy, melancholy.
Most people think that this is a word to express their thoughts, and you can completely understand it as acacia. You can associate it with Wen's two poems "Recalling Jiangnan". The connotation of this "worry" is a sense of confusion caused by the expectation of acacia.
Wen, "Memories of Jiangnan"
Never hate,
I hate the end of the world.
I don't know what I'm thinking. Water and wind are empty.
Blue clouds are blue and blue.
After washing, I boarded the river pavilion alone and leaned against the bar to stare at the river.
Thousands of ships passed by, and no one expected to appear.
Broken-hearted Baipingzhou.
Of course-in everyone's eyes, it will be their own understanding-maybe it is a sigh of the rise and fall of the country, maybe it is a thought of the people all over the world, maybe it is a sigh of homesickness. .......
I hope I can help you ~ ~ ~ Please ask questions.