佛果圜悟禪師碧巖錄 1.41

1.41

垂示云。會則途中受用。如龍得水。似虎靠山。不會則世諦流布。羝羊觸藩守株待兔。有時一句。如踞地獅子。有時一句。如金剛王寶劍。有時一句。坐斷天下人舌頭。有時一句。隨波逐浪。若也途中受用。遇知音別機宜。識休咎相共證明。若也世諦流布。具一隻眼。可以坐斷十方。壁立千仞。所以道。大用現前。不存軌則。有時將一莖草。作丈六金身用。有時將丈六金身。作一莖草用。且道。憑箇什麼道理。還委悉麼。試舉看。

The pointer says:
If you understand, then there is application along the way: like a dragon reaching water, like a tiger leaning against a mountain. If you do not understand, then worldly conventions circulate: a ram butting a fence, waiting by a tree stump for a hare. At times a single phrase is like a crouching lion; at times a single phrase is like the Diamond King's treasured sword; at times a single phrase sits and cuts off the tongues of everyone under heaven; at times a single phrase follows the waves and pursues the billows. If there is application along the way, when meeting one who knows the tune, distinguish the dynamic and the opportune, recognise good and ill fortune, and mutually bear witness. If worldly conventions circulate, possess a single eye: you can sit and cut off the ten directions, standing like a wall a thousand fathoms high. Therefore it is said: When great function appears before you, it maintains no rules. At times one takes a single blade of grass and uses it as the sixteen-foot golden body; at times one takes the sixteen-foot golden body and uses it as a single blade of grass. But tell me: relying on what principle is this? Do you fully understand yet? Try to cite it to see.