Dagger Vision
Represents impending murder of Duncan
Blood-covered and pointing towards the king's chamber
Banquo's Ghost
Appears at a feast
Silent accusation of Macbeth's crime
Further Murders
Macbeth's guilt leads to more killings
Attempts to cover up initial crimes
Sleepwalking
Believes her hands are stained with blood
Unable to wash away the guilt
Supernatural Signs
Ambiguous reality of visions
Both Macbeths interpret them as signs of guilt
Shared Guilt
Visions remind them of their crimes
Culmination of their guilt in hallucinations
Macbeth
Driven to further atrocities
Guilt prevents him from enjoying power
Lady Macbeth
Descends into madness
Culminates in her tragic suicide