Beginning of Essay
I am going to prove that in the play Macbeth, a symbol of blood is portrayed often(and with different meanings), and that it is a symbol that is developed until it is the dominating theme of the play towards the end of it. To begin with, I found the word "blood", ....

Middle of Essay
.... he is referring to Macbeth's braveness in which his sword is covered in the hot blood of the enemy. After these few references to honour, the symbol of blood now changes to show a theme of treachery and treason. Lady Macbeth starts this off when she asks the spirits to "make thick my blood,". What she is saying by this, is that she wants to make herself insensitive and remorseless for the deeds which she is about to commit. Lady Macbeth knows that the evidence of blood is a treacherous symbol, and knows it will deflect the guilt from her and Macbeth to the servants when she says "smear the sleepy grooms with blood.", and "If he do bleed, I'll gil ....