The Ten Oxherding Pictures - The Ten Oxherding Pictures which relate back to a Ch'an master in the Sung dynasty China (1126-1279 AD), have spiritual roots in the early Buddhist texts. They provide useful imagery of an illusion to be negated before a seeker of truth can experience enl - http://www.buddhanet.net/oxherd1.htm
Ten Oxherding Pictures - With an introduction by Urs App. - http://iriz.hanazono.ac.jp/frame/data_f01.en.html