This is a prime example of the horrible things guilt can do to you. Lady Macbeth started off as normal person. Her one mistake of being power hungry led her to a downward spiral into insanity. If she would have been patient instead of trying to kill people to get Macbeth into the king position, she wouldn't have had the guilt and she wouldn't have killed herself. The witches told the future which means he would have became king regardless of if he killed Duncan or not. Something else could have happened to Duncan; they didn't have to kill him. She would have enjoyed being queen a lot more if it had not gotten somebody murdered in order to be it. It would have been a lot better because she would not be paranoid about getting caught and neither would Macbeth. She also would have been a lot more peaceful because her self-conscience would not have gotten to her in the way it did. The story of Macbeth can teach you very good life lessons. The first and biggest one is that greed can bring you down a lot. The second is that it pays to be patient. Last but not least is that guilt is not something you can ignore; you have to deal with it before it gets out of hand. The guilt brought upon Lady Macbeth by these bad deeds did more harm to her than what she thought they would. Therefore, Lady Macbeth's suicide was brought on by her guilt of being responsible for Duncan's murder.