Adso's Dream of the Coena Cypriani

While praying in the church, Adso falls asleep and has a vivid, grotesque dream. The dream is a distorted version of the 'Coena Cypriani,' a medieval parody of the Bible, mixed with the events and characters of the past few days. William later interprets the dream, noting that it contains clues about the forbidden book and the nature of the crimes. The dream reveals the central role of the 'Coena Cypriani' manuscript.