The quote comes from Xin Qiji's "Ugly Slave". The young man doesn't know the feeling of sorrow and falls in love with the building. Falling in love with the upper floors, I force myself to express my sorrow in order to compose new words. Now that I know all the sorrow, I want to stop talking. I wanted to give it up, but I said it was a cool autumn. At that time, when the poet was demoted and emigrated, he felt gloomy and depressed. As a result, people have a sense of right and wrong. When he was young, he didn't know the hardships of the world. He loved to compose poems, but lacked life experience, so he had to go up to tall buildings alone, take pictures of the railings, and pretend to be mature and have a sense of vicissitudes of life. But after the poet truly experienced the ups and downs of life and the ups and downs of his career, his devotion to serve the country with all his heart was poured cold water on by the small court of the Southern Song Dynasty. Really sad, really miserable. He wanted to ask the sky angrily, he wanted to denounce the thick soil, but when the anger and sadness reached his lips, they turned into a sigh. The weather was cold. The true desolation and vicissitudes of life were reflected by the sentence "But the weather was cold for a good autumn." "Perfect interpretation. When you are extremely sad, you don’t burst into tears, but you chew it silently in your heart.