Cao Xueqin's poem for 'Dream of the Red Chamber' was: "Alright Song" The world's feelings are thin, human feelings are evil, the rain sends the evening flowers easy to fall. The morning breeze drips away tears, I want to write a letter, my heart is sad, I speak alone. Difficult! Difficult! Difficult! People become different, today is not yesterday, sick soul often like swing rope. The sound of the horn is sad at night. I'm afraid people will ask me. I swallow my tears and pretend to be happy. Hide! Hide! Hide! The poems in 'Dream of the Red Chamber' had a unique rhythm and mood that made one feel relaxed and happy. Among them," The Song of Happiness " was hailed as a classic in the history of Chinese literature. It depicted the various states of life and the fickleness of the world, expressing Cao Xueqin's understanding and thinking of human nature.