What was the theme of 'Dream of the Red Chamber'?

The main theme of 'Dream of the Red Chamber' was 'wealth and honor, family inheritance, love and marriage, good and evil of human nature'. In the novel, Cao Xueqin used the rise and fall of the four families of Jia, Shi, Wang and Xue as the main line to describe the life, thoughts, emotions and contradictions of a huge feudal dynasty. It showed the complexity of human nature and the conflict between good and evil, revealing the dark side of feudal society and the distortion of human nature. The novel expressed the author's understanding and criticism of human nature through the creation of the main characters such as Jia Baoyu, Lin Daiyu and Xue Baochai.