In the novel The Catcher in the Rye by J.D. Salinger, the protagonist, Holden Caulfield, expresses his profound sense of alienation and disconnection from the world around him. Throughout the novel, this theme is illustrated by his interactions with various characters and his critical view of the adult society. As Holden navigates his surroundings, he constantly struggles with his identity and purpose, reflecting on his experiences in a deeply introspective manner.
What is the central theme of Holden Caulfield's experiences in the book?