Vast and spacious, like sky and water merging during autumn, like snow and moon having the same color, this field is without boundary, beyond direction, magnificently one entity without edge or seam. Further, when you turn within and drop off everything completely, realization occurs. Right at the time of entirely dropping off, deliberation and discussion are one thousand or ten thousand miles away. Still no principle is discernible, so what could there be to point to or explain? People with the bottom of the bucket fallen out immediately find total trust. So we are told simply to realize mutual response and explore mutual response, then turn around and enter the world. Roam and play in samadhi. Every detail clearly appears before you. Sound and form, echo and shadow, happen instantly without leaving traces.
~ twelfth century Ch’an master Hongzhi
from Cultivating the Empty Field