The description of psychological activities was one of the commonly used techniques in novel creation. It could allow the readers to understand the inner feelings and psychological state of the characters more deeply. At the same time, it could also help the readers better understand the development of the story and the character's character. The benefits of describing mental activity included: 1. Enhancing the realism of the novel: By describing the psychological activities of the characters, the readers can have a deeper understanding of the inner world of the characters and feel the contradictions, struggles, and pains of the characters, thus enhancing the realism of the novel. 2. Shaping the character's personality: The description of psychological activities can help readers better understand the character's personality and behavior. For example, the character's inner hesitation, uneasiness, and fear can reflect the character's personality and psychological characteristics. 3. Drive the development of the storyline: The psychological activities of the characters can also provide important clues and impetus for the development of the storyline. For example, the inner thoughts, choices, and decisions of the characters can affect the development of the characters and the storyline. 4. To improve the readers 'reading experience: Through the description of psychological activities, readers can have a deeper understanding of the inner world of the characters. At the same time, it can also improve the readers' reading experience and let the readers better understand and feel the story.