The Question and Answer section for Poe’s Poetry is a great resource to ask questions, find answers, and discuss the novel.
None of Poe's narrators are reliable: that is perhaps why his stories are so enjoyable. The reader quickly concludes that his narrators are mentally unstable and the great part is figuring out in what ways. Consider the story The Tell-Tale Heart....
I can't go through each one for you but check out the motif of "love" at the link below:
There is gothic imagery throughout the poem, there is also fantasy imagery like the kingdom by the sea as a lonely and in an undefined but mysterious location.