“From the bells, bells, bells, bells, Bells, bells, bells —”
— Edgar Allan Poe, The Bells (1849)
Context
Poe's poem moves through four kinds of bells — silver sleigh-bells, golden wedding bells, brazen alarum bells, and iron funeral bells — each section progressively darker. By Part III, the bells are tolling fire, panic, and terror across a burning city.
How the repetition works
The seven repetitions of "bells" are pure sound effect. Poe is writing onomatopoeia — the word's own pealing repetition mimics the metal striking metal striking metal of an alarm out of control. Read aloud, the line cannot help but accelerate, exactly as bells do in panic.