The title and some of the imagery in the novel derive from a soliloquy by the title character in Shakespeare’s tragedy
Macbeth. In Act V, Scene v, following the death of his wife, and as he begins to realize his dire situation, Macbeth speaks his “Tomorrow” soliloquy:
To-morrow, and to-morrow, and to-morrow
Creeps in this petty pace from day to day
To the last syllable of recorded time,
And all our yesterdays have lighted fools
The way to dusty death. Out, out, brief candle!
Life’s but a walking shadow, a poor player
That struts and frets his hour upon the stage
And then is heard no more.
It is a tale
Told by an idiot, full of sound and fury
Signifying nothing.
http://www.mcsr.olemiss.edu/~egjbp/f..._sf.html#title