Why, then, 'tis time to do 't. Hell is murky!—Fie, my lord, fie! A soldier, and afeard? What need we fear who knows it, when none can call our power to account?—Yet who would have thought the old man to have had so much blood in him.
Regarding this, what is meant by brief candle?
vote 2. You might have noticed that Shakespeare is using a lot of time references - tomorrow (x3), pace, day (x2), time, yesterdays - and then "death". So the candle is set up as a symbol of time passing. "brief" of course means "lasting only a short period of time".
What is the meaning of the tomorrow speech in Macbeth?
His speech insists that there is no meaning or purpose in life. Rather, life “is a tale / Told by an idiot, full of sound and fury, / Signifying nothing.” One can easily understand how, with his wife dead and armies marching against him, Macbeth succumbs to such pessimism.