The novel The Catcher in the Rye written by JD Salinger depicts a boy named Holden Caulfield whose psyche ultimately impacts his mental state. Throughout the novel, Holden's mental state is gradually affected by this damaged psyche. He demonstrates either the id or the superego, and rarely his ego. Holden's psyche appears in the forms of the id, superego, and ego. The id acts on impulse and wants instant gratification. This happens when Holden brings Sunny, a prostitute, into his room. Holden said to Maurice, the elevator guy, “Okay,” I said. It was against my principles and all, but I felt so depressed that I didn't even think about it” (page 91). Holden felt so depressed that he wasn't even sure what he had agreed to and after agreeing, he regretted it. Holden accepts Maurice's offer to send a prostitute to his room without thinking first, which was an impulse from his brain. The identity also appears whenever Holden drinks and smokes. Holden “…sat up in bed and smoked another cigarette. It was ugly. I must have smoked about two packs since I left Pencey” (page 100). Identity is revealing...