Analyse the passage from Charlotte Bronte's "Jane Eyre" in which Jane finds herself locked within the Red Room at Gateshead Hall, explaining its relevance to the structure of the novel as a whole.

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…also continues throughout, and every time Jane experiences fear or humiliation her mind returns to her memory of the horror and ridicule she encountered that afternoon. Many of the Gothic images described in this passage foreshadow future Gothic themes within the plot, and the elaborate Gothic imagery reappears frequently throughout. The extract also provides the reader with an extensive insight into Jane's personality by demonstrating the presence of her easily provoked superstitious and passionate nature.