Taking the entire globe, if North America and Western Europe can be called the 'cities of the world', then Asia, Africa and Latin America constitute 'the rural areas of the world'.
Bio: Yamada Koun Zenshin, or Koun Yamada, was the former leader of the Sanbo Kyodan lineage of Zen Buddhism, the Dharma heir of his teacher Yasutani Haku'un Ryoko.