Please Help Me With This "Macbeth" Thing. Please I Need To Understand

Question:I need help with the play Macbeth because I need to know the role that the witches play with the desicion that Macbeth decides to choose. Its kind of hard to understand PLEASE HELP ME

Best Answer - Chosen by Asker: I need help with the play Macbeth because I need to know the role that the witches play with the desicion that Macbeth decides to choose. Its kind of hard to understand PLEASE HELP ME

Three mysterious hags who plot mischief against Macbeth using charms, spells, and prophecies. Their predictions prompt him to murder Duncan, to order the deaths of Banquo and his son, and to blindly believe in his own immortality. The play leaves the witches' true nature unclear we don't really know whether they make their own prophecies come true, or where they get their knowledge from. In some ways they resemble the mythological Fates, who impersonally wove the threads of human destiny. They clearly take a perverse delight in using their knowledge of the future to toy with and destroy human beings.

Understanding? Understanding? But trhere IS no understanding. MacBeth doth murder understanding.