When Lady Macbeth speaks to herself after reading the letter, she speaks with zeal. This heightens the tension for the audience since they know something exciting is about to happen. Lady Macbeth wishes for the spirits to remove her feminine aspect and dehumanize her. This makes her more powerful and able to commit murder. Shakespeare uses language that would have been familiar to his audience when describing Lady Macbeth's first entrance. He starts off simply asking "What's done cannot be undone". This statement shows that even though Macbeth has just committed a terrible crime, nobody can prove it so no one can punish him. From here, Shakespeare builds up to a great climax where he describes how Lady Macbeth goes into action. She doesn't hesitate or show any sign of remorse. Instead, she tells herself that she should be happy that her husband has found success since their arrival in Scotland was not easy. This demonstrates that she is completely devoid of human feelings. Finally, Shakespeare ends the scene on a very intense note by saying that "thunder rolls" will tell if Macbeth is guilty or not. This means that something extremely violent is going to happen soon and it will be hard to tell who is responsible for it. Shakespeare uses many techniques to make Lady Macbeth's first entrance dramatic.