Once the Raven enters the story, Poe creates a nightmarish mood with his choice of dark dialogue.
"Prophet!" said I, "thing of evil!--prophet still, if bird or devil!--Whether Tempter sent, or whether tempest tossed thee here ashore,
Poe appeals to the sense of hearing by using onomatopoeias, words like tapping and rapping to create a mysterious effect.
“you came rapping, And so faintly you came tapping, tapping at my chamber door”
Poe references Gilead, a mountain range mentioned in the bible, and he mentions Balm, a plant that can heal broken hearts, that grows in Gilead, to make the mood sad and depressed, because of his broken heart.
'Is there — is there balm in Gilead? — tell me — tell me, I implore!”'