In Macbeth, the witches seem to be confusing figures, they are portrayed as dark, eccentric, and strangely amusing creatures. It doesn't seem that they have that much of an importance early on, but after finishing the story and truly comprehending, we see that the witches have done a lot. Through certain examples, and subtle clues displayed in the story, we can safely deduce that the "weird sisters" were specifically designed to implant ideas in Macbeth's brain, which later influence him by giving him all types of information that eventually affect his manner of handling greed, guilt, and other emotions that put him virtually on the edge of sanity.
            
             We see that the witches display a keen interest in Macbeth, reasons for the interest aren't exactly given, but illustrations of interest can be shown. As Berryman suggests, the witches have ulterior motives for Macbeth. We see this through Berryman's example, which states that at first, Macbeth is hailed as a great hero, but in his coming, he is hailed by the pricking of a witch's thumb. Which basically means that he is brought on a sort of omen, not portrayed as something that could be of some good. Berryman brings up the fact that the witches know that Macbeth shall be bad, it is not stated at this point of the story why, but it is just instilled that he is (321). This example illustrates the fact that the witches do not have the role of Macbeth's aids, but rather as Macbeth's bad influences. Which is also supported by Shwister in his line "Their appetite for mischief is infinite"(Shwister 60). Which tells us that the natural intent of the witches is to do evil, of which they can never be satisfied, which is displayed by the word "infinite" in the quote, and by then being naturally prone to evil, they act upon Macbeth in a negative type of influence.
            
             Influence is again illustrated when we see that the Macbeth meets ...