Nature and the Unnatural Theme Analysis

In medieval times, it was believed that the health of a country was directly related to the goodness and moral legitimacy of its king. If the King was good and just, then the nation would have good harvests and good weather. If there was political order, then there would be natural order. Macbeth shows this connection between the political and natural world: when Macbeth disrupts the social and political order by murdering Duncan and usurping the throne, nature goes haywire. Incredible storms rage, the earth tremors, animals go insane and eat each other. The unnatural events of the physical world emphasize the horror of Macbeth and Lady Macbeth's acts, and mirrors the warping of their souls by ambition.

Also note the way that different characters talk about nature in the play. Duncan and Malcolm use nature metaphors when they speak of kingship—they see themselves as gardeners and want to make their realm grow and flower. In contrast, Macbeth and Lady Macbeth either try to hide from nature (wishing the stars would disappear) or to use nature to hide their cruel designs (being the serpent hiding beneath the innocent flower). The implication is that Macbeth and Lady Macbeth, once they've given themselves to the extreme selfishness of ambition, have themselves become unnatural.