. Which character has a prophetic vision that sets the events of Chapter 1 in motion?

In Chapter 1 of Shakespeare's "Macbeth," it is the three witches, also known as the Weird Sisters, who possess the prophetic vision that sets the events of the play in motion. They propose the famous lines, “Fair is foul, and foul is fair,” indicating a theme of ambiguity and the inversion of moral values, which foreshadows the chaos that will unfold due to Macbeth's ambitions. Their prophecies about Macbeth becoming king catalyze his actions and decisions throughout the play, leading to dramatic consequences for both him and other characters. The witches’ foretellings create an atmosphere of fate versus free will, prompting both Macbeth and Lady Macbeth to act on their ambitions, which eventually leads to their downfall.