What happens
Three witches meet on a blasted heath during a storm. They speak in riddling verse about thunder, lightning, and battle, establishing an atmosphere of supernatural chaos. They conjure a mysterious familiar and agree to meet again after the fighting ends, where they will encounter a man named Macbeth. The scene ends with their chant: "Fair is foul, and foul is fair."
Why it matters
This opening scene establishes the play's moral inversion and supernatural frame. The witches' paradox—"Fair is foul, and foul is fair"—announces that nothing in this world will be what it seems. Good and evil become indistinguishable. The witches aren't simply evil creatures; they're forces of ambiguity itself, speaking in riddles and equivocations that blur truth and falsehood. By naming Macbeth before he has done anything, they plant a seed of prophecy that will drive the entire tragedy. The scene's brevity and strangeness create an unsettling tone: we don't yet know who Macbeth is, why the witches want him, or what their prediction means.
The witches' language—fragmented, chanting, full of rhyme—separates this supernatural realm from the normal world. They summon familiars (Graymalkin and Paddock, a cat and a toad), suggesting they traffic with dark forces. Yet Shakespeare makes them oddly familiar, almost comical in their petty malice. The hectic, stormy opening ("thunder, lightning, or rain") connects the witches to disorder and chaos in nature itself. When the scene ends with the witches vanishing into the storm, we understand they exist between worlds—neither fully real nor imaginary. They set the play's central question: Are they orchestrating Macbeth's fate, or simply naming what his own ambition will create?