She wants her mind as well as Macbeth’s to be overcome with malicious ideas. In this instance she is willingly provoking spirits so that cruel things will happen. From the beginning of the play Lady Macbeth is constantly coming up with new was to deceive and kill other characters. Shakespeare gives us her malicious thoughts and ideas. When Macbeth tells her that Duncan plans to leave the next day she says:
Lady Macbeth’s evil is very noticeable in these first few scenes.
“Lady Macbeth's castle is an "infectious house" with fatal gates to welcome Duncan. In all these ways, Lady Macbeth certainly tries to become an intimate of evil, a communer with murdering ministers, fatal ravens, spirits who will give her suck. Does that make her a witch?” (Willis, “Lady Macbeth”).
Willis points out how Lady Macbeth wants to become close with evil and maybe even become one with evil inside her. From the evidence above one can see how Shakespeare as well as other writers point towards Lady Macbeth representing the main evil force in the play. Through the use of her control on Macbeth, her contact with evil spirits, and her malicious considerations and notions Lady Macbeth is the more “foul” and ruthless character in the