A lonely journey was a famous line in the online novel Sword Snow Stride ". It described the protagonist Xu Fengnian's experience of wandering around and walking alone to express the author's deep understanding of loneliness. In the novel, Xu Fengnian was a talented but eccentric person. He longed for recognition and support but was unwilling to share his inner feelings with others. Therefore, he chose to leave his hometown and embark on a lonely journey alone to find his own answer in the long journey. Through Xu Fengnian's experience, the novel expressed the author's understanding of loneliness and thinking about human nature. Loneliness is a common state in human life. It may cause people to feel lonely, helpless and lost, but it can also make people think about their inner world and the value of life. In the novel, Xu Fengnian found his inner world and the meaning of life through the journey of loneliness, so as to understand human nature and emotions more deeply.