Instruction:

If he wishes to say it, he says it; and there's no one in the world who's his match. When he has to act, he acts; and his total activity gives way to no one. Like sparks struck from flint, like flashes of lightning. Darting flames ride on the wind. A raging torrent crosses knife edges. Should even a supremely enlightened master appear, he will not escape having the tip of his sword cut off and his tongue tied fast. I open a narrow passageway as I test by citing this case. Look!

Case:

A monk asked Jôshû, "The myriad phenomena return to one. Where does the one return to?" Jôshû said, "When I was in Seishû I made a cloth robe. It weighed seven pounds."

Verse:

Knitting everything together and cornering the old and ancient awl.

How many know its weight, the seven pound robe?

Right now I throw it into West Lake.

This fresh breeze after releasing the load—Whom can I give it to?

Links:

List of posted koans, and introduction to Hekiganroku

Extended commentary on verse, case and introduction.