At this stage, Macbeth is transfixed by the possibility of his success. He is intrigued by the three promises made by the witches because he is already Thane of Glamis. He is hopeful that the witches are correct, but not overly optimistic until Ross and Angus deliver the news that he is to be Thane of Cawdor. The conflict between Macbeth and Banquo is also foreshadowed in this scene as the witches also deliver propechies to Banquo, thus setting the stage for Macbeth's need to have Fleance murdered and prevent Banquo's sons becoming king. It is at this point when Macbeth's tragic flaw, his ambition, takes over and he changes from being the war hero who has loyally served Duncan to overpowering greed and ambition to rule almost as a dictator.