Chinul, a 12th-century Korean Seon learn, emphasized that insight into our true nature is unexpected, but will be to be followed by apply to ripen the insight and attain total Buddhahood. The up to date Korean Seon grasp Seongcheol opposed this, emphasizing "unexpected enlightenment, unexpected cultivation". This can be Probably https://www.youtube.com/user/DavidHoffmeister