This poem could be about a multitude of things with the title Poe chose, but one thing that is clear is that it is about a Raven. Judging from Poe's other works, it is likely about some kind of a rabid/demonic raven. Also, it is very likely that this Raven will torture someone in some unimaginable way that will destroy the person more so psychologically than physically. Paraphrase
I was laying in my bedroom pondering life when I heard a knocking at my door. Maybe it is my dead wife Lenore.
No, that can't be it. It must just be someone coming by to visit me. I called down the hall apologizing for taking so long to answer the door, but no one was there. This really freaked me out, so I called for Lenore, but again, there was no answer. I heard the knocking again, maybe it's my window. I will check so I can confirm it's darkness and not anything more than that. When I opened up my window a raven came flying in and landed above my door. I decided to ask the raven his name, and his only response was “nevermore.” I was really freaked out and amazed that there was a bird with the odd name of “nevermore.” The bird will for sure leave tomorrow, as everything else does. But the bird responded with “nevermore.” He must have just learned this word from a bitter owner or someone passing by. There is no way it can be speaking to me. So, I just sat back down in my bed to ponder this.
Wow, he actually must be a gift from god. I have to ask him if I will ever forget Lenore. He responded with “nevermore.” If anything will the pain of Lenore's death ever fade? But, the raven said “nevermore.” Will I ever be able to see my Lenore again, whether in this life or the afterlife? But, the raven said “nevermore.” Get out of my house Raven! Get out of my house and get your beak out of my heart. But, the raven said “nevermore.” The raven won't leave and my soul will never be lifted and I'll never be happy. Connotation
This poem uses many poetic devices....