The Bodhisattva Sila Sutra says, "Our Essence of Mind is intrinsically pure, and if we knew our mind and realized what our nature is, all of us would attain Buddhahood." As the Vimalakirti Nirdesa Sutra says, "At once they become enlightened and regain their own mind." Learned Audience, when the Fifth Patriarch preached to me I became enlightened immediately after he had spoken, and spontaneously realized the real nature of Tathata. For this reason it is my particular object to propagate the teaching of this "Sudden" School, so that learners may find Bodhi at once and realize their true nature by introspection of mind.
-The Platform Sutra of Hui-Neng, Sixth Patriarch of the Ch'an "Sudden Enlightenment" School