"Shushogi" is a simplified edition for laymen of "Shōbōgenzō" (正法眼蔵, lit. "Treasury of the True Dharma Eye") , which is written by the 13th century Japanese Buddhist monk and founder of the Japanese Sōtō Zen school, Eihei Dōgen. In the Sōtō Zen school, it is positioned as one of the most important scripts and considered as an excellent introduction to Zen Buddhism. The translator, Nukariya Kaiten is one of the greatest Buddhist scholar of Meiji Japan.
Dōgen Zenji (道元禅師; also Dōgen Kigen 道元希玄, or Eihei Dōgen 永平道元, or Koso Joyo Daishi) was a Zen Buddhist teacher and the founder of the Sōtō Zen school of Buddhism in Japan.