In many ways, "An Occurrence at Owl Creek Bridge" is all about interpretation. Farquhar's understanding of the world around him and the reader's perception of what happens to Farquhar are closely tied to each other. Farquhar's version of reality becomes more and more problematic as the story progresses, as what happens to him becomes less believable. By focusing on Farquhar's version of reality, Bierce inspires us to question what about our lives is and is not real. If a man in the process of being hanged can imagine and experience an extremely realistic escape, what can't the human brain cook up?
Peyton Farquhar's escape and death prove that you can never trust your perception of the world.
Farquhar's belief in his escape shows how powerful the human mind is and how it shapes reality.