A large part of the story is how the narrator 's mind is on such an unstable emotional state that he creates a setting in which the old man can’t feel safe in the own privacy of his home and especially his bedroom. The narrator 's mind feels as if it is being controlled by the old man’s vulture-like eye which causes the mind to become anxious and want to spy on the old man. This one characteristic that the old man has is what causes the narrator to essentially lose his mind, causing him to invade the old man’s privacy and in the end, kill the old man because the mind of the narrator cannot take the thumping that it is interpreting to be the old man’s …show more content…
It is the whole reason that the narrator murders this harmless old man. The narrator even reveals that he cares for the old man but he cannot get over the fact that the old man has an eye of a vulture. The eye also is so much into the narrator 's mind that it “Chills the very marrow in (his) bones,” meaning that the eye essentially creeps the narrator out so much that he is scared of it to the point of it being a bone-chilling fear. The eye of the old man is so much in the narrator’s mind that he feels so intimidated of it to the point that he feels he has to murder the old man just to get away from the eye for