After he performs several bloody tasks, the madness inside of Macbeth is unmistakably visible to everyone around him. As a result of this insanity, he sees visions and hallucinations. Each time Macbeth hallucinates, he plunges further into insanity that is essentially caused by misguided ambition, dread and guilt.

Why do you think Macbeth hallucinates a floating dagger?

The imaginary bloody dagger that Macbeth sees when he hallucinates can symbolically represents his guilty conscience, ambition, and desire to commit a horrific crime in order to become king. Macbeth proceeds to kill King Duncan off stage and is initially overwhelmed with guilt after assassinating the king.

What does it show us when Macbeth hallucinates?

Hallucinations. Visions and hallucinations recur throughout the play and serve as reminders of Macbeth and Lady Macbeth's joint culpability for the growing body count. ... Covered with blood and pointed toward the king's chamber, the dagger represents the bloody course on which Macbeth is about to embark.