Huineng (638-713), author and hero of the Platform Sutra , is often credited with founding the Southern school of Chan Buddhism and its radical doctrine of "sudden enlightenment." However, manuscripts discovered at Dunhuang at the beginning of the twentieth century reveal that the real architect of the Southern school was Huineng's student Shenhui (684-758). An ardent evangelist for his master's teaching and a sharp critic of rival meditation teachers...