I do not think you were visited by a bird-lady looking to steal your kale greens and Velveeta cheese. I could be wrong, but I don't think harpies have the power to morph into human form. Rather, Homer tells us that the goddess Athena possesses not only supreme wisdom and unflinching courage, but also the protean power to change her appearance. In Book 7 of the Iliad, which sings the story of ancient heroes, Athena changes into a vulture to better survey the war. Great Falconeas, I hazard to say that Athena finds you worthy of her patronage, and she visited your dreams in the initial shape of a vulture to impart added wisdom and strength to your already formidible self. Next time, conceal the dream camera and set its dream autotimer.