Psychological description was a literary technique that expressed the inner world of a character by describing the feelings, thoughts, emotions, doubts, and so on. The main functions of psychological descriptions were: 1. Prominent character: Through the character's inner thoughts and feelings, it shows the character's personality characteristics so that readers can better understand the character's personality. 2. Demonstrate the character's emotions: The psychological description allows the reader to feel the emotional changes in the character's heart, such as joy, sadness, anger, etc. 3. Enhancing the appeal of the plot: psychological descriptions can allow readers to understand the thoughts and emotions of the characters more deeply, so as to better understand and grasp the development of the plot. 4. Portraying the character: The psychological description can let the reader feel the character's image more intuitively by showing the character's inner feelings. 5. Creating an atmosphere: The psychological description can create a specific atmosphere by showing the inner feelings of the characters to enhance the appeal of the novel. Psychological description was a commonly used literary technique in novel creation. It could allow readers to understand the inner thoughts and emotions of the characters more deeply, so as to better understand and grasp the plot and characters of the novel.