What happens
Macbeth hosts a state banquet to consolidate his power, but his composure shatters when Banquo's ghost appears—visible only to him—sitting in his chair. Lady Macbeth attempts damage control, dismissing his outburst as a recurring ailment, but Macbeth's terror betrays his guilt. The ghost vanishes and reappears, forcing Macbeth to abandon the feast. Alone, he resolves to visit the witches again and eliminate any remaining threats, beginning with Macduff.
Why it matters
The banquet scene is a masterpiece of psychological collapse. Macbeth has secured the throne through murder, yet he remains desperately insecure—he needs the nobles' presence and approval to legitimize his rule. The ghost's appearance fractures his carefully constructed facade. What makes the moment devastating is that only Macbeth sees the phantom; the other lords see only a man raving at an empty chair. Lady Macbeth's frantic attempts to explain away his behavior ('my lord is often thus / And hath been from his youth') expose how thin the veneer of normality has become. Macbeth's earlier soliloquy—'I am in blood / Stepped in so far that, should I wade no more, / Returning were as tedious as go o'er'—anticipated this moment: he cannot stop, and he cannot pretend to stop.
The ghost itself is brilliantly ambiguous. Is it supernatural, or a hallucination born from Macbeth's guilt? Banquo's blood literally stains Macbeth's conscience, yet the apparition exists only in his mind, where murder lives most vividly. The scene reveals a crucial truth: Macbeth's tyranny is self-defeating. Each murder meant to secure his throne instead erodes it further. He kills Banquo to prevent prophecy, yet that murder drives him toward the witches, who will offer the riddling equivocations that lead to his doom. By scene's end, Macbeth has decided to murder Macduff's family—an act of pure paranoia that will create the very enemy he fears. The feast meant to celebrate power becomes the stage for its unraveling.
