萬松老人評唱天童覺和尚頌古從容庵錄 3.106

3.106

The Master said: Dongshan exhorted Caoshan, saying, "From my late teacher Yunyan, I was personally imprinted with the Samādhi of the Precious Mirror, the crucial point when matters are exhausted. I now entrust it to you; protect and uphold it well." "The precious mirror, limpid and bright, tests the partial and absolute"—is this not the verification of the partial and absolute in the cock crowing in the home forest and the crane growing old with the clouded pines? Although a mirror is bright, it has a front and a back. Only when the jade loom pivots, mutually interweaving, is there the method of both light and dark arriving simultaneously. The commentary on the Book of Changes says: "When the way is exhausted, it changes; changing, it penetrates; penetrating, it endures." Dongshan and his spiritual son walked with compass and square; that their sectarian style has been greatly roused down to the present day—is this not the effect of a deep source and long-flowing stream?