{draw:rect} The witches show us what the unnatural looks like. , wonders Banquo when he first sees them. He also tells them, "You should be women, / And yet your beards forbid me to interpret / That you are so" (1.3.45-47). The witches are not fiends that only visit this world. They are inhabitants of this world who look like they should be human, but in them the human form is unnaturally distorted. This can be read as a foreshadowing (a prediction/indication) of the kind of king that Macbeth will become. {draw:rect} After Lady Macbeth receives her husband's letter, she is eager to talk him into doing the murder she knows that he has in mind. To prepare herself, she calls upon evil spirits. Lady Macbeth wants to be unnatural, so that she can be "fell," deadly. In the next breath, she calls upon those evil spirits -- the "murdering ministers" -- to "Come to my woman's breasts, / And take my milk for gall, you murdering ministers, / Wherever in your sightless substances [invisible bodies] / You wait on nature's mischief!" (1.5.47-50). "Take my milk for gall" means "take my milk away and put gall in its place," and "wait on" means "assist," not just "wait for," so she seems confident that somewhere in nature there are demons with the power to make nature itself unnatural. We perhaps see the effect of these demons in Act 1 Scene 7 where Lady Macbeth persuades her husband to murder Duncan. {draw:rect} Just before Macbeth murders King Duncan, he hallucinates, seeing a bloody dagger in the air, and then he tells himself that it is the time of night for such a hallucination: . "Nature seems dead" because it's dark and quiet out, but as people fall asleep human nature seems dead, too, and then wicked dreams can take control. {draw:rect} Immediately after the scene in which King Duncan's body is discovered, there is a dialogue entirely devoted to the unnaturalness of the night of the murder. Ross is speaking with an Old Man. The Old Man's memories go back seventy...