What state of mind is Banquo in at the beginning of this scene?

Banquo, who has come to Inverness with Duncan, wrestles with the witches' prophecy. He must restrain himself the “cursed thoughts” that tempt him in his dreams (II i 8). When Banquo raises the topic of the prophecy as Macbeth enters the scene, Macbeth pretends that he has given little thought to the witches' prophesy.