In Haruki Murakami's "After Dark," a character imparts a crucial lesson to Mari about the fragility of life. The ground represents a facade of stability, which can quickly vanish, leaving one in disarray. This metaphor highlights the unpredictable nature of existence, suggesting that what appears solid can become uncertain with little warning.

When this precariousness occurs, individuals may find themselves isolated, grappling with the aftermath of unexpected change. The darkness symbolizes the loneliness and challenges faced when one's world is upended, underscoring the importance of resilience and the necessity to continue moving forward despite the hardships encountered.