Final answer:
Macbeth's active imagination deepens his internal conflict through various instances where his guilt materializes as auditory and visual hallucinations, and his wife's words manipulate his actions.
Step-by-step explanation:
Macbeth's active imagination is a crucial element in the play that contributes to his internal conflict. There are several examples where Macbeth's imagination exacerbates his guilt and anxiety. One instance occurs after the murder of King Duncan, where Macbeth hears a voice saying, 'Sleep no more! Macbeth does murder sleep,’ reflecting his fear that he will never find peace again. Another example is when Macbeth imagines the ghost of Banquo at the banquet, indicating his troubled conscience over his actions. Lady Macbeth's manipulative words also play upon Macbeth’s imagination, spurring him to action despite his doubts, as seen in her challenge to his courage.