Choose images such as "autumn moon", "layers of mountains", "cold wind", "high trees", "fog and dew", and "Guanshan" to imagine the scenery and feelings along Liu Yun's journey: the moonlight in late autumn. On the mountain ridge, the cold wind blew through the tall trees, leaves fell one after another, the night dew wetted the clothes, and the mountains overlapped, creating a desolate and cold picture. This scene not only describes the difficulty of the journey, but also highlights the hardships of the travelers. Inner loneliness.