The phrase Present fears Are less than horrible imaginings; My thought, a crime is but fantastical, Shakes so my single state of man that function Is smothered in surmise, nothing is But what is not.
Here Macbeth talks about his fears when he comes to think about reality an fantasy, seeing the prophecy of the witches as something impossible to happen, since theKing Duncan must die in order to him to become a King, so at the end how much can he trust in fantasy to take all to reality, how safe is to kill to obtain what is meant to be?. We can see a feeling of doubt and hesitation.