If you raise one principle, you raise all principles.
If you see one thing, you see all things.
If you see one mind, you see all minds.
If you see one way, you see all ways. There is nowhere that is not the Way.
If you see one mote of dust, you see the mountains, streams, and lands of all the worlds in the ten directions.
If you see one drop of water, you see all the moisture of all the worlds in the ten directions.
Furthermore, seeing all dharmas is seeing all states of mind. Since all dharmas are originally empty, the mind is not nonexistent.
The lack of nonexistence is sublime existence. Existence is nonexistence; nonexistence is existence: this is the sublime existence of true emptiness.
— Master Subul, Seon. A Bird in Flight Leaves No Trace: The Zen Teaching of Huangbo with a Modern Commentary. Wisdom Publications.