Blood is the essence of life. However, in William Shakespeare's Macbeth, it is used as a symbol of death, murder, and treason. There are several examples of this throughout the play. The first noteworthy example is when Macbeth is trying to clean his hands after murdering King Duncan. The second example comes when Macbeth talks about King Duncan's murder. The third instance is when Ross expresses his views about the King's death. The image of blood enhances the gruesome and horrible atmosphere of the play. Shakespeare conveys the message that the sight of blood illustrates an end to life in a barbaric and an inhuman manner.
Firstly, in the second scene, Macbeth is trying to wash off the blood from his hands after murdering King Duncan.