The Main Theme of “The Birthmark” by Hawthorn

What is the main theme (not the main idea) that Hawthorn is trying to convey with “The Birthmark?”

Make sure your answer is an analysis of the text and not merely a summary. You must use at least four direct quotations but no more than eight. Remember that a quotation must never stand alone, it must always be part of your own sentence, and quotations are no more than a sentence long. You are welcome to use outside sources for this paper, but make sure they are expert scholars, the sources are reliable, and the bulk of your argument is your own, not from another source.