In a novel, one could not see one's own shadow, which usually had the following meanings: 1. emphasize the protagonist's personality and independence: Many novels emphasize the protagonist's personality and independence, so if the protagonist does not have his own shadow, the reader may feel more real and vivid. 2. Show the growth and change of the protagonist: Many novels show the story through the growth and change of the protagonist. If the protagonist does not have his own shadow, the reader may feel the growth and change of the protagonist in the story more easily. 3. Prominent meaning and symbolism of the story: The novel usually has many symbols and meanings. If these symbols and meanings are not fully displayed, the reader may feel that the story lacks depth and meaning. Therefore, if the novel did not have the shadow of the protagonist, the meaning and symbol of the story might be more prominent. 4. Show the author's thoughts and feelings: Many novelists have their own thoughts and feelings when writing. These thoughts and feelings may not be expressed through the shadow of the protagonist. Therefore, if the novel did not have the shadow of the protagonist, it might highlight the author's thoughts and insights.