Literary mood refers to the atmosphere of where the story takes place and the attitude of the narrators. In lines 16-32 from "The Fall of the House of Usher," the narrator's mood is that of death, evil and distress. As he approaches his friend's house, its sight makes him feel "an iciness, a sinking, a sickening of the heart." He observes that he windows of the house seem like eyes, and compares the sensation of awfulness to the moment an opium addict comes back to reality.