Korean Seon
Chinul, a 12th-century Korean Seon master, followed Zongmi, and also emphasized that insight into our true nature is sudden, but is to be followed by practice to ripen the insight and attain full Buddhahood.
In contemporary Korean Seon, Seongcheol has defended the stance of "sudden insight, sudden cultivation". Citing Taego Bou (太古普愚: 1301-1382) as the true successor of the Linji Yixuan (臨済義玄) line of patriarchs rather than Jinul (知訥: 1158-1210), he advocated Hui Neng's original stance of 'sudden enlightenment, sudden cultivation' (Hangul: 돈오돈수, Hanja: 頓悟頓修) as opposed to Jinul's stance of 'sudden enlightenment, gradual cultivation' (Hangul: 돈오점수, Hanja: 頓悟漸修). Whereas Jinul had initially asserted that with enlightenment comes the need to further one's practice by gradually destroying the karmic vestiges attained through millions of rebirths, Huineng and Seongcheol maintained that with perfect enlightenment, all karmic remnants disappear and one becomes a Buddha immediately.
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