“When you are completely clear, there is no subjective distortion; when you are completely pure, there is true perception. But even if you are thus through and through, this is still now the transcendental key. When the wind and waves have died out, the ocean of mind is as is; when you get to the bottom of the ocean of mind, for the first time you see the black pearl.”

-Tzu-te
From “Teachings of Zen,” edited by Thomas Cleary

How many?!?!?