Blood itself - its color, its smell, and its importance is critical to life and surprising to encounter. The constant appearance of blood in Macbeth constantly remind the audience about how serious the outcomes of the characters actions are. But almost incomparable to the importance of physical blood, is the imagined blood discovered throughout the play. Imaginary blood symbolizes guilt for Macbeth and Lady Macbeth. It's not until after the murder of Duncan that their guilt begins to clear up. As their guilt grows, so does the importance of the blood discovered throughout the story. Significantly, the imaginary blood also depicts how Macbeth and Lady Macbeth both lose a grasp on sanity. Often stated throughout the play, is the fact that Lady