"Prophet!" said I, "thing of evil--prophet still, if bird or devil!
By that Heaven that bends above us--by that God we both adore--

from Edgar Allan Poe – The Raven on Rap Genius

Meaning

Much like Poe serves as a prophet to give mortal readers a sense of sublime beauty, the raven serves as a prophet sent from Heaven — or possibly — Hell to answers his burning questions about Lenore.

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