Without the mind there’s no buddha means that the buddha comes from the mind. The mind gives birth to the buddha. But although the buddha comes from the mind, the mind doesn’t come from the buddha, just as fish come from water, but water doesn’t come from fish. Whoever wants to see a fish sees the water before he sees the fish. And whoever wants to see a buddha sees the mind before he sees the buddha. Once you’ve seen the fish, you forget about the water. And once you’ve seen the buddha, you forget about the mind. If you don’t forget about the mind, the mind will confuse you, just as the water will confuse you if you don’t forget about it. Mortality and buddhahood are like water and ice. To be afflicted by the three poisons is mortality. To be purified by the three releases 71 is buddhahood. That which freezes into ice in winter melts into water in summer. Eliminate ice and there’s no more water. Get rid of mortality and there’s no more buddhahood. Clearly, the nature of ice is the nature of water. And the nature of water is the nature of ice. And the nature of mortality is the nature of buddhahood. Mortality and buddhahood share the same nature, just as wutou and futzu 72 share the same root but not the same season. It’s only because of the delusion of differences that we have the words mortality and buddhahood .
When a snake becomes a dragon, it doesn’t change its scales. And when a mortal becomes a sage, he doesn’t change his face.
He knows his mind through internal wisdom and takes care of his body through external discipline.