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", or different forms of it forty-two
times (ironically, the word fear is used forty-two times), with several other
passages dealing with the symbol.

Perhaps the best way to show how the symbol of
blood changes throughout the play, is to follow the character changes in Macbeth.
First he is a brave honoured soldier, but as the play progresses, he becomes a
treacherous person who has become identified with death and bloodshed and shows
his guilt in different forms. The first reference of blood is one of honour, and
occurs when Duncan sees the injured sergeant and says "What bloody man is
that?". This is symbolic of the brave fighter who been injured in a valiant
battle for his country.

In the next passage, in which the sergeant says
"Which smok'd with bloody execution", 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 gild the faces of the grooms withal, for it must seem their
guilt.

" When Banquo states "and question this most bloody piece of
work," and Ross says "is't known who did this more than bloody
deed?", they are both inquiring as to who performed the treacherous acts
upon Duncan. When Macbeth is speaking about Malcolm and Donalbain, he refers to
them as "bloody cousins" A final way, and perhaps the most vivid use
of the symbol blood, is of the theme of guilt. First Macbeth hints at his guilt
when he says "Will all great Neptune's ocean wash this blood clean from my
hand?", meaning that he wondered if he would ever be able to forget the
dastardly deed that he had committed. Then the ghost of Banquo, all gory, and
bloody comes to haunt Macbeth at the banquet. The sight of apparitions
represents his guilt for the murder of Banquo which he planned. Macbeth shows a
bit of his guilt when he says "It is the bloody business which informs
thus," he could not get the courage to say murder after he had killed
Duncan, so he says this instead.

Lady Macbeth shows the most vivid example of
guilt using the symbol of blood in the scene in which she walks in her sleep.
She says "Out damned spot! Out I say! One: two: why then 'tis time to do't:
hell is murky. Fie, my lord, fie, a soldier, and afeard? What need we fear who
knows it when none can call out power to account? Yet who would have thought the
old man to have had so much blood in him?". This speech represents the fact
that she cannot wipe the blood stains of Duncan off of her hands. It is ironic,
that she says this, because right after the murder, when Macbeth was feeling
guilty, she said "A little water clears us of this deed.

" When the
doctor of the castle finds out about this sleepwalking, he tells Macbeth
"As she is troubled with thick-coming fantasies,". What this means, is
that Lady Macbeth is having fantasies or dreams that deal with blood. Macbeth
knows in his mind that she is having troubles with her guilt, but does not say
anything about it. Just before the ending of the play, Macbeth has Macduff at
his mercy, and lets him go, because of his guilt. He shows that he is guilty,
when he says "But get thee back, my soul is too much charg'd with blood of
thine already.".

Of which, Macduff replies, "I have no words, my voice
is in my sword, thou bloodier villain than terms can give thee out." After
the death of Macbeth at the hands of Macduff, the symbolic theme of blood swings
back to what it was at the beginning of the play. It is the symbol of honour to
Malcolm this time. The death of Macbeth is honoured feat that Macduff is
congratulated for. So as we have seen meaning of the symbol of blood change from
honour to treachery, and then to guilt, after this, it returns to the symbolic
meaning of honour once again after the villain that changed the meaning from
honour to tyranny is killed. Due to these many changes, it has been proved that
the symbol of blood has many different meanings which can be attributed to it
throughout the course of this play.