All Buddhas preach emptiness. Why? Because they wish to crush the concrete ideas of the students. If a student even clings to an idea of emptiness, he betrays all Buddhas.
BodhidharmaWhen your mind doesn't stir inside, the world doesn't arise outside. When the world and the mind are both transparent, this is true vision. And such understanding is true understanding.
BodhidharmaBut people of the deepest understanding look within, distracted by nothing. Since a clear mind is the Buddha, they attain the understanding of a Buddha without using the mind.
BodhidharmaIf you know that everything comes from the mind, don't become attached. Once attached, you're unaware. But once you see your own nature, the entire Canon becomes so much prose. It's thousands of sutras and shastras only amount to a clear mind. Understanding comes in midsentence. What good are doctrines? The ultimate Truth is beyond words. Doctrines are words. They're not the Way. The Way is wordless. Words are illusions. . . . Don't cling to appearances, and you'll break through all barriers. . . .
Bodhidharma