Know the essence of mind. Its intrinsic essence is pure clarity. It is essentially the same as a Buddha. Know the functions of the mind. Its functions produce the treasure of teachings. When its activity is always silent, myriad illusions become suchness. Constantly be aware, without stopping. When the aware mind is present, it senses the formlessness of things. Constantly see your body as empty and quiet, inside and outside communing sameness. Plunge the body into the realm of reality, where there has never been any obstruction. Keep to unity without shifting. With constant presence, whether active or still, the student can see the Buddha nature clearly.

- Tao-hsin (580-651)

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