Macbeths minds deteriorating because in act 2 scene 1 he said “is this dagger I see before me handled towards my hand let me clutch the.” Shakespeare uses personification to justify that macbeth needs the dagger to guide him because he isn’t confident with his decision.

Macbeth’s madness begins in the very first scene he shows up. In Act I Scene III he and Banquo come across the three witches, who give them a strange prophecy. When Macbeth learns that he is destined to be Thane of Cawdor and King of Scotland, he begins to wildly imagine and fantasize about this. And when the nobleman Ross comes to give them the news that the old Thane of Cawdor will be executed for treason and Macbeth has been named the new Thane of Cawdor, Macbeth’s fantasies start going even crazier.