[IV, 1]

Macbeth

1684

Thou art too like the spirit of Banquo: down!
Thy crown does SEAR mine eye-balls. And thy hair,
Thou other gold-bound brow, is like the first.
A third is like the former. Filthy hags!
Why do you show me this? A fourth! Start, eyes!
What, will the line stretch out to the crack of doom?
Another yet! A seventh! I'll see no more:
And yet the eighth appears, who bears a glass
Which shows me many more; and some I see
That two-fold balls and treble scepters carry:
Horrible sight! Now, I see, 'tis true;
For the blood-bolter'd Banquo smiles upon me,
And points at them for his.
[Apparitions vanish]
What, is this so?

(Shakespeare)

Quote 2

SEAR

When Macbeth sees Banquo's ghost he says that his eyes are burning in horror and pain. In hell all you would see is horror and pain do basically so, Macbeth is getting a glimpse his future in hell.

Explanation