In Shakespeare’s "Macbeth" supernatural forces create a suspenseful atmosphere. The use of the supernatural in the witches, the visions, the ghost and the apparitions provides the backbone of the climax and "excuses" for Macbeth’s change of character. Because conscience plays such a central role in Macbeth’s tragic struggle, many critics use spiritual and supernatural theories to illuminate the drama’s character development. The play opens with the use of the supernatural when three witches encounter Macbeth on his way home from a bat ....