Constantly see your body as
Empty and quiet
Inside and outside
Communing in sameness.
Plunge the body into
The realm of reality,
Where there has never been
Any obstruction.

Daoxin (580-651), Dàoxìn, was the fourth Chán Buddhist Patriarch, following Jianzhi Sengcan 僧璨 (died 606) and preceding Hongren (601–674).