1. Foreshadowing: The narrator hints at the impending doom and the gruesome event without directly revealing it, creating a sense of suspense and foreboding from the beginning. For example, in the opening paragraph, he declares, "I heard all things in the heaven and in the earth. I heard many things in hell." This line suggests the narrator's heightened awareness and foreshadows the disturbing event that will unfold.
2. Personification: The narrator attributes human qualities to inanimate objects, making the atmosphere and objects seem alive and almost menacing. For example, he describes the old man's "Evil Eye," implying malevolent intent. This personification enhances the sense of paranoia and horror.
3. Pacing and Repetition: The narrator uses varying sentence lengths, particularly short and choppy sentences, to mimic his erratic mental state and rapidly escalating tension. Additionally, he repeats certain words and phrases, such as "eye" and "beating," which becomes hypnotic and unsettling, reflecting the narrator's obsession.