In "Already Dead," Denis Johnson explores the profound impact of encounters that challenge the protagonist's perception of reality. These moments compel him to confront the inevitable nature of fate, suggesting that life is often beyond one's control. The narrative reflects on how various experiences shape one's understanding of existence and the unseen forces at play in life.

The author emphasizes a connection between imagination and truth, indicating that understanding our destiny requires an acknowledgment of the deeper truths found in our creative thoughts. Through this lens, the story showcases a journey where the protagonist learns to accept both the complexities of reality and the significance of imaginative insights.