The names of the characters also carry significant connotations. "Montresor" suggests a sense of arrogance and superiority, while "Fortunato" ironically evokes a sense of good fortune, a stark contrast to his ultimate fate. Poe's use of language, particularly the narrator's chillingly calm and detached tone, adds another layer of connotation, suggesting a disturbing blend of sanity and madness. The story's ambiguity regarding the narrator's true motives further enhances the unsettling nature of the tale, leaving the reader to ponder the psychological complexities of revenge and the darkness that can reside in the human heart. The "cask" thus becomes a symbol of the story's central themes, reminding us that appearances can be deceiving and that even in the darkest recesses of the human soul, a twisted sense of justice can prevail.