In Jodi Picoult's novel "House Rules," Jacob's room symbolizes a haven where chaos and disorder are kept at bay. The quote highlights how his space remains untouched by the disarray that often characterizes teenage lives. Jacob, who has autism, has a unique way of organizing his surroundings, showcasing his desire for structure and predictability in a world that often feels overwhelming to him.

The statement suggests that for Jacob, his room is a sanctuary that preserves his sense of control and stability. It serves as an important reflection of his character, emphasizing the themes of order versus chaos and the need for individuals like Jacob to create environments that cater to their emotional and psychological needs within the broader context of family and societal expectations.