The narrator expresses shock and delight upon discovering that someone understands the significance of a "Narnia cubby." This term symbolizes a personal escape into imagination and creativity rather than a literal belief in fantasy lands. The connection between the characters is deepened as the narrator realizes that the other person shares an appreciation for this metaphorical refuge.
This moment highlights the importance of having someone who recognizes and respects one's inner world. It illustrates a profound understanding of how literature can serve as a means of liberation, enabling individuals to explore their thoughts and dreams while also maintaining a grip on reality.