Why are these lines from Act III important in the plot of the play? 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

This is important to the plot of the play because MacBeth is seeing a ghost of Banquo after he has been murdered. He thinks that once "the brains were out, the man would die, and there an end", meaning, once the man is dead, he would see no more of him. MacBeth is clearly losing his mind and is confused why this is happening and he says that "this is more strange than such a murder is

Explanation:

c? not a 100% sure

explanation:

what is your question because all i see is "i'll give 25p. and give brainliest.