Macbeth is someone who wants something he cannot properly have. If he was ever to become King legitimately, had he refrained from his crime, maybe his “grapes would ripen.” But as it stood in this story, they turned out to be as sour as his reign. If grapes can stand as a metaphor for attaining the crown, the mischievous witches were dangling sour grapes in front of a starving foxe’s face to mislead him into thinking there was a satisfying snack in store; unfortunately the fox couldn’t distinguish between ripe and unripe ones, and still jumped up for them, once he ate them, he observed they were nasty and sour. As he was distracted trying to swallow these gross grapes which struggled to go down his throat, he fell into a trap and eventually starved. Figuratively speaking this is what happened to Macbeth; what Macbeth saw looked like tasty fruit; it just didn’t turn out to be. He might have been a great king and surely had visions of becoming one, but it wasn’t his time yet. Macbeth embraced enthusiastically his future as King but ultimately failed to acknowledge the fact that he was abundantly lost in delusion and in a state of utter “unripeness.” Macbeth embraced the idea of attaining something he couldn’t realistically have after falling for the witches deceitful promises. He was tricked into procuring his own downfall through the stimulation of his ambition for something he couldn’t have immediately and where those Weird Sisters knew as a “foregone conclusion” he wasn’t patient enough to wait for. Evil; just plain evil.