A Selection from Dogen's Mountains and Waters Sutra...
It is not the case simply that there is water in the world; within the world of water there is a world. And this is true not only within water: within clouds as well there is world of sentient beings; within wind there is world of sentient beings; within fire there is world of sentient beings; within earth there is world of sentient beings. Within the dharma realm there is a world of sentient beings; within a single blade of grass there is world of sentient beings; within a single staff there is a world of sentient beings. And wherever there is a world of sentient beings, there, inevitably, is the world of buddhas and ancestors. The reason this so, we should study very carefully.
In this way, water is the palace of the "true dragon"; it is not flowing away.18 If we regard it only as flowing, the word "flowing" is an insult to water: it is like imposing "not flowing". Water is nothing but water's "real form just as it is". Water is the virtue of water; it is not flowing. In the thorough study of the flowing or the not-flowing of a single [drop of] water, the entirety of the ten thousand things is instantly realized. Among mountains as well, there are mountains hidden in jewels; there are mountains hidden in marshes, mountains hidden in the sky; there are mountains hidden in mountains. There is a study of mountains hidden in hiddenness.
An old buddha has said, "Mountains are mountains and waters are waters."
