This document discusses how William Shakespeare uses powerful imagery in his play Macbeth to set tone and convey meaning. It gives examples of imagery used at the beginning of the play with the three witches that creates a dark, mysterious tone. Later imagery of the witches continues this underlying evil tone. Further imagery is discussed where Macbeth expresses anxiety and regret over his actions through vivid images of blood on his hands and incarnadining the seas. The imagery throughout the play effectively establishes tone and reveals characters' emotions.