What is sitting for meditation?-In our school, to sit means to gain absolute freedom and to be mentally unperturbed in all outward circumstances, be they good or otherwise.  To meditate means to realise inwardly the imperturbability of the essence of mind

Hui Neng (638-713), Huineng also commonly known as the Sixth Patriarch of Chan, is a central figure in the early history of Chinese Chan Buddhism. According to tradition he was an uneducated layman who suddenly attained awakening upon hearing the Diamond Sutra.