In The Tempest, Shakespeare describes an entity not only capable of making the choice to participate in human affairs, but actively doing so. The simple, poignant lines of Ariel’s song introduce the idea of a sea with agency, providing a vision of the possibility and revealing an entity able to enact both physical and mental change. More than just a ruse to draw Ferdinand into Prospero’s plan, Ariel’s song is an attempt to confound the psyche and distract by recounting the sea’s physical power to transform:

Full fathom five thy father lies,
Of his bones are coral made;
Those are pearls that were his eyes,
Nothing of him that doth fade
But doth suffer a sea-change
Into something rich and strange. (1.2.397-402)

In these lines, Shakespeare uses words reminiscent of Clarence’s dream in Richard III (1.4.24–33) and the forfeited wealth it describes on the sea floor. Ariel’s song, like…