In Shakespeare's Macbeth, specific scenes focus the readers' attention to the suspense and involvement of the supernatural. The use of witches, apparitions and ghosts provide important elements in making the play interesting. Examining certain scenes of the play, it can be determined that as supernatural occurrences develop, Macbeth reflects a darker self-image. .
Macbeth experiences his first strange encounter of the supernatural when he meets the three witches in act one, scene one. After learning of his prophecies to become king, Macbeth states, "Glamis, and Thane of Cawdor: The greatest is behind (still to come)." (1.3.117-118). Shakespeare uses foreshadowing, a literary technique, to suggest to his readers the character Macbeth will suffer a personality change. Macbeth also implies his first notions of plotting an evil scheme by this comment. After the prophecies of the witches revealed the fate of Macbeth, the quest of the throne will be his next victory. "The witches reveal a fate for Macbeth and imply that a part of what will come to him must come, but they reveal no fate of evil-doing for him and never, even by suggestion, bind him to evil doing. ", states literary critic Willard Furnham. Furnham declares the only power the witches obtain over Macbeth is the power of insinuation. By offering to Macbeth the idea of power, the witches push Macbeth to the next level of greed and evil that did not exist prior to the encounter. .
The murder of King Duncan initiates Macbeth's second encounter with the supernatural when he witnesses a floating dagger. As Macbeth awaits the signal to make his way up the stairs, he sees the floating dagger and proclaims, " Come, let me clutch thee. I have thee not, fatal vision, sensible (able to be felt) to feeling as to sight, or art thou but a dagger of the mind, a false creation, proceeding from the heat-oppressed brain?" (2.2.33-38). This apparition confuses and frightens Macbeth.