 He maintains that "butoh is a dialogue with the gravity," while other dance forms tend to revel in escape from gravity.He sees his dance, in contrast, is based on "sympathizing or synchronizing" with gravity.Butoh’s source is the Japanese avant-garde of the 1960s, a period when Japan struggled with the lingering effects of the atomic bomb detonations at Hiroshima and Nagasaki that ended World War II.