The passage reflects on the idea that people often judge a book solely by its cover, believing they understand it without exploring its contents. However, the character realizes that if a book's story remains untold, it can be misrepresented and misunderstood based on external perceptions. This highlights the disparity between appearances and reality.
The quote emphasizes that while a book may have a cover that influences how it is viewed, it is the inner narrative that truly defines it. The character's newfound understanding suggests that one must look beyond superficial judgments to grasp the true essence of something, reinforcing the notion that value lies within rather than in outward appearances.