In The Catcher in the Rye, we hear a lot from Holden Caulfield. This says something about his self-image or how he sees himself. Physically, he describes himself as having gray hair. Which means he thinks he looks old. He also thinks he is older mentally. Also, he feels like people neglect him which cause his struggles.
Cecelia Jupe o Sissy is the daughter of a clown, after her father abandoned her she serves as foil for Gradgrind, Sissy act as the opposite or contrast for Louise, while Louisa is rational and kind of unfeeling, Sissy compassionate and imaginative, she is guided for her emotions and personal preference.
Representation - The process of describing or symbolizing
Connotation - symbolic meaning
Narrative - The process of telling a story
Tina thought that her cat was cuddlier then her sisters dog.
If you mean figurative language then
"air of night"