"The raven himself is hoarse That croaks the fatal entrance of Duncan Under my battlements. Come, you spirits That tend on mortal thoughts, unsex me here.." These words are spoken by Lady Macbeth in Act scene lines as she waits for King Duncan to arrive.
RAVEN Ravens, and to a lesser degree Crows, are very magical creatures. Raven with her plumage as dark as the void between the stars, is a citizen of the afterworld. She travels between the worlds of the living and the dead. Being native to both worlds, Raven naturally has great knowledge and Power to effect transformations.