The eye is a major symbol that Poe mentions several times throughout the story. It is the impetus that foments the narrator’s determination to murder the old man. According to the seventh page of the story, the narrator states, “I then replaced the boards so cleverly, so cunningly, that no human eye-not even his-could have detected any thing wrong.” Within this excerpt, the narrator claims that his reconstruction of the floorboards was truly flawless, and not even the eye of the deceased man could descry any abnormalities or imperfections. Apparently, the eye symbolizes an awareness of the narrator’s insanity, for he suggests that the eye possesses the capability of distinguishing imperfections that others fail to see, and could therefore view his mental condition. An additional symbol featured in the text is the sound of a beating heart. Within the eighth page of the tale, the narrator described, “I felt that I must scream or die!-and now-again!-hark! Louder! Louder! Louder! Louder!- ‘Villains!’ I shrieked, ‘dissemble no more! I admit the deed!-tear up the planks!-here, here!-it is the beating of his hideous heart!’” The narrator is tormented by the sound of what he believes to be the beating of the old man’s heart, and he eventually confesses to the crime due to it. Clearly, the beating heart symbolizes guilt, for it incites him to admit committing the murder, much like