Answer:The main message conveyed in the story is that guilt has the ability to consume an individual's sanity and lead them to irrational behavior. The narrator's obsession with the old man's eye, which ultimately drives him to murder, is fueled by his guilt and distorted perception. The relentless sound of the beating heart, which he imagines to be audible to others, represents the manifestation of his guilt and the haunting presence of his crime.
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