For many in contemporary societies, the imagining of unseen phenomena has been shaped by the claims of modern science. The air that surrounds us is emptied of sentient agency, animated only by the wanderings of microorganisms, the gyration of waves of sound and electricity, the movement of molecules, and the agitation of atoms and particles. That this emptiness stretches even to the skies is conveyed by our very notion of outer space – a vast and vacuous realm in which stars and planets cycle on paths guided by the laws of energy and matter, indifferent to human hopes, deeds, and suffering. Germs may be feared, and bacteria warded off, but even the harmful elements of the unseen world are conventionally conceived apart from voices that tempt and sing, eyes that watch and witness, and spirits that sizzle with ardor and anger.