Prosaic men with no imagination to defy can preserve a smug complacency after the commission of a crime, because they cannot vibrate to it. Give a stroke to their thick temper, and it only answers with a thud. Their face is an emotionless Sahara, over which no showery gusts or smiles of April linger. But Macbeth was delicately strung: the slightest stir of the invisible air was registered by a vibration. When the ghost slips out of his own phrase, 'twas too pat,--this coming at the toast, "to the general joy of the whole table," at this pretence of thirst to drink a dead man's welfare; too nicely timed for flesh and blood to bear; too suggestive of continual liability to see the eyes glaring across the brim of any moment. Observing how easily the awful figure can thicken out of invisibility, he cries, "Take any shape but that!" And his mind is desperate to exorcise it into an "unreal mockery," and vainly struggles with his own personifying power.
"It will have blood; they say, blood will have blood."
It is a cold, calculating vengeance, marrowless, bloodless, but alert in a shape against which Macbeth's nerves at any time may stumble, on the midnight staircase, in the gallery's pale shimmer, in sleep between his wife and his embrace, and always at his own suggestion of a phrase, a dream. His fancy never yet inflicted such a frightful recoil of an offended Heaven. It comes at his own invitation; for he had said in the forenoon of that day,--
"To-night we hold a solemn supper, sir, And I'll request your presence;"
"Lay your highness' Command upon me." "Fail not our feast." "My lord, I will not."
On the way to it he was a little delayed by being murdered; but, though late, he does not fail.
This tragedy was slowly conceived during the married life of Macbeth and his Lady. Their ambitious desires spent years in collusion before an heir of opportunity was born to them. The rapid and breathless action of the earlier scenes makes clear to us that it does not flow from any sudden resolution. The past years topple in the wave that combs to break into this sweeping surge. The movement of the play is unnatural, unless we admit that the married couple have grown familiar with many projects, all of which make them languish for occasion. Macbeth has revelled in the idea that if the chance offered he possesses every other quality to supplant Duncan,--ambition, audacity, swiftness, all good fortune, except a turn of circumstance. He discovers at the juncture that his wife is the only aptitude he can contribute to it. She remembers his profuse suggestions with a touch of scorn. Is he a man?