In act 4, scene 1, the Three Witches present Macbeth with three apparitions that enigmatically depict his future and offer misleading prophecies, which make Macbeth overconfident and lead to his downfall. The first apparition tells Macbeth to beware of Macduff. The second apparition tells Macbeth to be bold, courageous, and confident because no man born of a woman will ever harm him. The third apparition encourages Macbeth to be as proud and brave as a lion because he will not be defeated until Birnam Wood marches to fight him at Dunsinane Hill.
Later on in the play, each one of these prophecies proves true, and Macbeth ends up losing in the final battle. In act 5, scene 1, Malcolm tells his army to break off branches from Birnam Wood to conceal themselves as they march towards Macbeth's castle. In the next scene, Macbeth's messenger informs the king that it looks as if Birnam Wood is moving towards the castle. The first and second prophecies are also fulfilled after Macbeth dies at the hands of Macduff after learning that Macduff was not naturally born of a woman. In act 5, scene 8, Macduff tells Macbeth that he was "untimely ripped" from his mother's womb, which means he had a Caesarean birth.