Treatise on Contemplating Mindfulness

Huike asked: If there are people intent on seeking the path of Enlightenment, what method should they practice, what method is most essential and concise?
Bodhidharma answered: Let them just contemplate mind—this one method takes in all practices and is indeed essential and concise.

What little we know of him sitting in front of the wall and not responding to Huike until he took extreme measures to show his sincerity indicates someone of profound depth and experience. When compared with other translations one wonders if the entirety of this is from him or later accruals.

The Daily Zen Teisho
Treatise on Contemplating Mindfulness