The Witches role in Macbeth is one of Shakespeare's clearest representations of fate in the play. The witches haunt Macbeth with their prophesies yet speak only Macbeth's own thoughts
The first witch "Grimalkin", though spidery and beautiful in appearance is reminiscent of the old superstitions of the medieval mind. Her faerie qualities draw into questions the authenticity of her words yet Macbeth sees only her beauty. Lady Macbeth's influence testifies to Macbeth's view of women as attractive but harmless.
The second witch "Paddock" is neither male nor female and represents the pagan undertones still prevailing in Scotland at the time. The fragments of druidic robes stained and crusted with mud imply a state somewhere between death and resurrection.
The third witch "Warlock" is not limited to a single time or place. A warrior stained with blood at the throat and hands "Warlock" reflects the violence and bloodshed of medieval Scotland. As the strong arm of the witches it is Warlock who sees that the prophecies are carried out.
The Witches' appearances are ever changing. Macbeth sees the witches only as he wishes to see them and in turn they show him only what he wants. Their presence is preceded always by the witches' motif: a Celtic knot that, like the witches, cannot easily be interpreted.