Macbeth is a play about the folly of vaulting ambition! Discuss!!! Macbeth is a play mainly about ambition, there are many other issues in the play such as, manipulation, jealousy, regret, paranoia, bravery and courage. But out of all of these issues I would have to say that ambition is the main issue in the play. All of these other issues are a part of the play and they all come into the play at certain times. Macbeth had once heard from the witches prophecy that one day he would become king. When Macbeth heard this was going to happen, this made him feel more ambitious and this was what lead to Duncan's murder. After Macbeth became ki