What do you mean by "only the grass and trees are scattered, lest the beauty wither"?

The meaning of the poem is: I think the vanilla tree is dying, and I am afraid that the beauty will grow old.

This passage is the etymology of "beauty is fading" When you see this sentence, what you may see is a picture of a beautiful woman dying in the autumn wind. When you think of the glory of the past, you only feel sad.

This poem is from Li Sao written by Qu Yuan.

Emperor Levin is a descendant of Miao nationality, and I am the emperor Kao Boyong. I went to Meng Xi with my virginity, but Geng Yin and I surrendered. The emperor looked at Yu Chu-and Zhao Xiyu had a good name: Yu Zhengzi and Yu Yueling. Fenwu has both inner beauty and self-cultivation. Hu Jiang left with Bi, thinking that she was admirable. If I am not as good as me, I am afraid that my age is not with me. Mulan Xi in the morning and maize in the evening. The sun and the moon suddenly don't flood, and the spring and autumn have successively. But the vegetation is scattered, and I am afraid that the beauty will come late. Do not cherish the strong, abandon filth, why not change this degree? Take the horse galloping, come to my way first!

Let me translate it briefly:

I am a distant descendant of Gu Di Levin, and Bo Yong is my late and respected father. I was born in Gengyinnian, silver moon. My father guessed my birthday carefully, and only through divination did I get a corresponding reputation. Give me the name convention, and give me the word Ling Jun. I have a lot of inner beauty and excellent talent at the same time. I am wearing a string of fragrant Angelica dahurica and a string of autumn orchid fragrance. After a long time, I'm afraid I can't catch up. Time waits for no one, which is worrying. In the morning, I climbed to the top of the mountain to pick magnolia, and in the evening, I picked Su Mang and came to Shuizhou River. Time never stops. Spring comes to Qiu Lai, and the four seasons alternate. I feel sad that I am getting old when I think that the plants and trees are dying in the autumn wind. If you don't take advantage of your youth, why not change the nature of loving beauty? Get on the horse and let go of your hooves. Come on, I am willing to be a pioneer.

Expand your knowledge of Qu Yuan's literature and learn about it together:

Poets and politicians of Chu State during the Warring States Period. The name is flat, the word is original, the name is correct (upright and upright, strict with self-discipline), and the word spirit is average (good endowment, fair). He is the first great patriotic poet in China and one of the greatest romantic poets in China. He is the founder and representative writer of Chu Ci, and he initiated the tradition of "vanilla beauty". His representative works include Li Sao, Nine Songs and Tian Wen. Lisao is the longest political lyric poem in ancient China. He is a disciple of Chu and a doctor. In internal affairs, he sponsored Chu Huaiwang, discussed state affairs and entertained guests, drafted constitutional order and reform, and advocated "American politics": "Tessa" and "people-oriented". Diplomatically, he advocated "uniting Qi to resist Qin" and sent envoys to Qi twice. Together with Copernicus in Poland, Shakespeare in Britain and Dante in Italy, they are called "the four cultural celebrities in the world".