Answer:
it creates dramatic tension.
Explanation:
Often the authors use the thoughts and words spoken by the characters to create a dramatic tension in the story. For example, a character may be experiencing a terminal illness and he is very worried, sad and hopeless, but when someone asks how he is he smiles and says that he is great. This creates a dramatic tension in the story because the reader knows what is happening and what the character says is different than what he is thinking.
I think metaphor because it is not something literal but it has meaning behind it.
Answer: it adds a more realistic feeling to the book.
