The natural world, and the struggle of all living creatures to thrive and secure their existence within it, is a central theme in Harrison’s work. Birds, plants, animals and humans, both real and imaginary, spiritual, pagan and symbolic, take their places in his compositions, engaging the viewer and encouraging us to look beyond what we know to be existent. This is again the case in Spirits Drifting, in which night-dwellers awaken a cast of nocturnal creatures, led by a swooping, screeching bird of prey. Painted with a puzzling precision, not unlike Surrealist dreamscapes of the early 20th-century, even familiar devices and objects begin to appear strange and out of place.