Macbeth, aside. the prince of cumberland! that is a step
on which i must fall down, or else o'erleap,
for in my way it lies. stars, hide your fires;
let not light see my black and deep desires:
the eye wink at the hand; yet let that be,
which the eye fears, when it is done, to see.
- william shakespeare, macbeth, act i, scene iv
what event is foreshadowed by macbeth's aside in this scene?