They watch Lady Macbeth sleepwalk (Act 5, Scene 1), and their horror guides ours. They are an audience on stage, and their calm prose frames her broken prose.
- "More needs she the divine than the physician." (Act 5, Scene 1). The Doctor recognises that her illness is spiritual: she needs a priest, not medicine. Guilt is a sickness of the soul.
- "I would not have such a heart in my bosom for the dignity of the whole body." (Act 5, Scene 1). The Gentlewoman would not swap her heart for a queen's rank, so the royal title is worthless next to a clean conscience.
The Doctor's "I think, but dare not speak" shows fear under a tyrant. In Act 5, Scene 3 Macbeth asks him to cure "a mind diseas'd", and is told "the patient / Must minister to himself". Use them as witnesses who make the audience judge, and as mouthpieces for the moral: "Unnatural deeds / Do breed unnatural troubles".