Daigo-tettei (大悟徹底, daigo-tettei) is a Japanese term used within Zen Buddhism, which usually denotes a "great realization or enlightenment."[1] Moreover, "traditionally, daigo is final, absolute enlightenment, contrasted to experiences of glimpsing enlightenment, shōgo"[1] or kenshō. According to Dōgen in a fascicle of the Shōbōgenzō titled Daigo,[2] the master Dōgen writes that when practitioners of Zen attain daigo they have risen above the discrimination between delusion and enlightenment.[3] Author J.P. Williams writes, "In contrast, in SG Daigo, the apparently positive 'great enlightenment' is more clearly an extension of the meaning of fugo, no-enlightenment, than 'enlightenment.'[4]