The novel Deep Night reflected the emotional dilemma and social reality in the modern city. The protagonist of the story, Xiao Yan, was a young musician. He wandered around the city and came into contact with all kinds of women, but his heart felt lonely and empty. His experience reflected many problems faced by men in modern society, including confusion about love, doubt about self-worth, anxiety about interpersonal relationships, and so on. The novel 'Deep Night' had a profound symbolic meaning. The relationship between Xiao Yan and his female friends represented the relationship between people in modern society. These relationships were often built on the surface of politeness and communication, but their inner feelings and values were often ignored. At the same time, the music in the novel also had a symbolic meaning. It represented the emotions and desires in the depths of Xiao Yan's heart as well as his efforts to find a balance between himself and his heart. The novel Deep Night reflects the emotional dilemma and social reality in modern society, but it also has a profound symbolic meaning.