以针投钵 (以針投鉢) yǐ zhēn tóu bō

yǐ zhēn tóu bō set phrase use a needle placed in a bowl
Domain: Buddhism 佛教 , Subdomain: Chan School , Concept: Koan 公案
Notes: Quote: a phrase used in Chan literature, for example, in the No. 13 koan in 碧巖錄 ”The Blue Cliff Record”; refers to a story where Nāgārjuna places a needle in a bowl of water (retranslated from Ch’ung-hsien, K’o-ch’in, and Thomas F. Cleary trans. 1998, p. 82; Ding '以針投鉢'; FGDB '以針投鉢'; T 2003, Scroll 2)