In this passage, Carver emphasizes that a writer's unique essence transcends mere style. It entails a distinctive signature that permeates their work, reflecting their personal worldview. This individual perspective is what truly differentiates one writer from another, rather than simply talent, which is widely available among many writers.
Carver highlights the importance of a personal approach to storytelling, suggesting that writers who articulate their singular vision artistically can have a lasting impact. This underscores the idea that it is not just the skill of writing that matters, but how a writer uniquely interprets and expresses their experiences and observations.