Shake off this downy sleep, death’s counterfeit,
And look on death itself! up, up, and see
The great doom’s image!
– William Shakespeare
Macbeth, Act 2, Scene 3. Macduff needs everyone to wake up after the discovery of Duncan’s murdered body. He calls on everybody to shake off their sleep, which is a poor imitation of death, and see real death – the doomsday image of the murdered Duncan.