Why are these lines from Act III important in the plot of the play? You must cite from and explain these lines in your response
Macbeth to Lady Macbeth
the time has been
That, when the brains were out, the man would die,
And there an end; but now they rise again,
With twenty mortal murders on their crowns,
And push us from our stools: this is more strange
Than such a murder is