In seeking the essence of the Way, 
one should quiet the mind
and penetrate to the depths. 
Silently wander within
and clearly see the origin
of all things, obscured by nothing.
The mind is boundless and formless,
just as the pure water
contains the essence of autumn.
It is glistening white and lustrously bright
in the same way that 
moonlight envelops the entire night.

HongZhi Zhengjue (1091 CE-1157 CE), Hong Zhi Zhengjue was an important Chinese Chan Buddhist monk who authored or compiled several influential texts.