In the passage, the author highlights the limitations of human communication, suggesting that individuals often fail to articulate their true thoughts and feelings due to various constraints. As a result, we may find ourselves in a superficial understanding of one another. This unexpressed complexity leaves a gap in our understanding that books are uniquely suited to fill.

Books are portrayed as a deeper means of accessing the intricate emotions and ideas that lie beneath the surface of everyday life. They provide insight and clarity, acting as a window into the complexities of human experience that are often hidden from plain view. Reading allows us to explore these depths, much like delving behind the scenes of a film to uncover the story's underlying narratives.