In the Poe's poem, the raven taps on the door of the speaker's chamber and the narrator opens the shutters and the raven came in, so that, the raven comes in through the window.
Open here I flung the shutter, when, with many a flirt and flutter,
In there stepped a stately Raven of the saintly days of yore;"
"The Raven" is a poem written by the American writer Edgar Allan Poe.
"The Raven" deals with an unnamed narrator on a dreary night in December who sits reading "forgotten lore" by a dying fire as a way to forget the death of his beloved Lenore.