Otto Piene «Archaic Light Ballet» 1960.
His first one-man show in Dusseldorf in 1959 included his Archaic Light Ballet and served as a formal announcement of his concern with involving spectators in a response to the elements. He later wrote: «By elements, I do not only mean the classic Greek elements: fire, water, air and earth. I also mean the human elements of action, reaction, involvement, participation.»
Light Art from Artificial Light (Lichtkunst aus Kunstlicht) ZKM Karlsruhe, 2006.