In "The Wheel of Darkness," Douglas Preston explores the futility of pursuing material desires. The analogy of carrying water to the sea illustrates the endless nature of this quest; no matter how much effort one expends, the goal remains unachievable. This metaphor emphasizes that chasing earthly possessions and pleasures can lead to a feeling of emptiness and dissatisfaction, portraying such pursuits as ultimately pointless.

Preston's statement invites readers to reflect on the deeper meaning of life beyond superficial wants. It suggests that fulfillment cannot be found in material gain, but rather in pursuing more profound, spiritual, or meaningful experiences. Ultimately, the narrative urges a reconsideration of priorities, encouraging individuals to seek what truly enriches their lives instead of getting lost in the relentless chase for temporary satisfaction.