In Philip Pullman's "The Golden Compass," the character Lyra grapples with the realization that youth often comes with a false sense of permanence. Young individuals tend to believe that the joys and experiences they cherish will last indefinitely, but this notion is shattered as they confront the inevitable changes and losses that life brings. This idea reflects a universal truth about the journey from innocence to a more nuanced understanding of reality.

The quote serves as a poignant reminder to readers that while childhood is filled with dreams and the illusion of lasting happiness, the passage of time alters relationships and circumstances. This moment of insight emphasizes the importance of embracing the present while recognizing that change is a fundamental aspect of existence. Ultimately, it invites contemplation on the fleeting nature of life's moments.