Saitama (city) city boundaries. The western portion of the city lies on the lowland created by the Arakawa River along with those created by small rivers such as the Moto-Arakawa River, Shiba River, and Ayase River. The rest of the area mostly resides on the Ōmiya Plateau lying in the north-south direction. Dispersed in this region, major rivers flow southward, almost paralleling to one another. Saitama has ten wards ("ku"), which were assigned official colours as of April 2005: Saitama's economy is principally constituted by commercial business. The city is one of many commercial centers of the Greater Tokyo area and serves
Shusaku Arakawa formed a close friendship. He started using diagrams within his paintings as philosophical propositions. Jean-Francois Lyotard said of Arakawa's work that it "makes us think through the eyes," and Hans-Georg Gadamer described it as transforming "the usual constancies of orientation into a strange, enticing game—a game of continually thinking out." Quoting Paul Celan, Gadamer also wrote of the work: "There are songs to sing beyond the human." Charles Bernstein and Susan Bee observe, "Arakawa deals with the visual field as discourse, modal systems that constitute the world rather than being constituted by it." Arthur Danto found Arakawa to be "the