Macbeth Quote Analysis

Continuing his description of the night's disturbances, Lennox reports that an owl (the 'obscure bird') shrieked all night and that people say the earth shook as if feverish.

Personifying the earth as 'feverous' makes the planet itself seem infected by Macbeth's crime, as though the murder has spread like disease beyond the human realm. The word 'obscure' for the owl avoids naming it directly, keeping the bird shadowy and half-visible—appropriate for a night when everything natural has become strange and unreadable. By giving the earth a body that can sicken, Shakespeare collapses the boundary between human guilt and physical world, so that Macbeth's psychological corruption becomes environmental.

Support a thesis that in Macbeth, guilt is not a private emotion but a contagion that spreads into the physical world—this quote shows nature developing symptoms of fever and madness, as if the earth has absorbed Macbeth's crime into its own body.