Rebecca Horn, installation view of The Vertebrae Oracle at Sean Kelly, New York, May 10 - June 21, 2014. © Rebecca Horn. Courtesy: Sean Kelly, New York. Photography: Jason Wyche.

Rebecca Horn, installation view of The Vertebrae Oracle at Sean Kelly, New York, May 10 - June 21, 2014. © Rebecca Horn. Courtesy: Sean Kelly, New York. Photography: Jason Wyche.

Rebecca Horn, detail of Metamorphoses between Rock and Butterfly, 2014. Stone, art butterfly, steel, wood, electronic device, motor, transparent cover, 63 3/8 x 16 1/8 x 16 1/8 inches. © Rebecca Horn. Courtesy: Sean Kelly, New York.

Rebecca Horn, Metamorphoses between Rock and Butterfly, 2014. Stone, art butterfly, steel, wood, electronic device, motor, transparent cover, 63 3/8 x 16 1/8 x 16 1/8 inches. © Rebecca Horn. Courtesy: Sean Kelly, New York.

Rebecca Horn, Der Feuerfall, 2013. Volcano stones, steel, brass, glass, gold leaf, branch, motor, electronic device, 76 3/4 x 47 1/4 x 31 1/2 inches. © Rebecca Horn. Courtesy: Sean Kelly, New York.

Rebecca Horn, Duchamp's Montgolfiere, 2014. Mirror, glass, motor, electronic device, 21 5/8 x 23 5/8 x 24 13/16 inches. © Rebecca Horn. Courtesy: Sean Kelly, New York.