In "The Amber Spyglass," Philip Pullman explores the theme of choice and its inherent consequences. The protagonist reflects on the nature of decision-making, recognizing that when a path is chosen, all other options vanish, akin to extinguished candles. This metaphor highlights the finality of choices and how they delineate the course of one’s life.

The contemplation of possibilities emphasizes that the act of choosing is essential, even when it leads to the loss of other potential paths. Each choice brings clarity and direction, yet it also entails the acknowledgment of what could have been, presenting a paradox of existence where to act is to forfeit other realities.