Treasury of Knowledge of the True Law, The [正法眼蔵] ( Shōbō-genzō): A work by Dōgen (1200–1253), founder of the Sōtō school of Japanese Zen, in which he discusses the sole practice of single-minded seated meditation (zazen), the daily life of practitioners, the rules and teachings of the school, and other topics. It is esteemed as the most important text of the Sōtō school.