Act III Scenes 1-4

"O, full of scorpions is my mind, dear wife!" This is a big indicator to the fact that Macbeth is going crazy. "that on the torture of the mind to lie." (page 124 But I think that the most important symbolism in this little section is the scene in which Banquo dies, and it becomes dark. Then there is the fact that Lady Macbeth is slowly starting to feel guilty, and Macbeth is feeling less guilty.