Since the speaker may (as many speculate) be insane, it is impossible to know the true nature of his relationship to Porphyria. Theories, some of them rather bizarre, abound: some contemporary scholars suggest, for example, that the persona may be a woman; if so, the strangulation could stem from frustration with the world. An incestuous relationship has also been suggested; Porphyria might be the speaker's mother or sister. Another possibility is that she is a former lover, now betrothed, or even married, to some other man. Alternatively, she may simply be some kind lady who has come to look in on him, or even a figment of his imagination.