探竿影草 tàn gān yǐng cǎo

tàn gān yǐng cǎo set phrase use a pole to study grass; a probe, for observation
Domain: Buddhism 佛教 , Subdomain: Chan School
Notes: Quote: a phrase used in Chan literature, for example, in the No. 10 koan in 碧巖錄 ”The Blue Cliff Record” (retranslated from Ch’ung-hsien, K’o-ch’in, and Thomas F. Cleary trans. 1998, p. 63; Ding '探竿影草'; FGDB '探竿影草'; T 2003, Scroll 1)