Through Xiangzi's life experience and understanding of society, the novel truly showed the face of the dark society and the ugliness and greed of human nature. The injustice and exploitation Xiangzi suffered in society, as well as the various difficulties and pains he experienced, let the readers see the real difficulties and challenges faced by ordinary people in that era. At the same time, through the communication and interaction between Xiangzi and other characters, the novel also reveals the differences between social classes and the various weaknesses of human nature, such as selfishness, cruelty, betrayal, etc., so that readers can feel the ugliness and horror of human nature in that era.