一切經音義 34.394

34.394

洞清（古文衕迵二形同徒貢反案洞猶通過也亦深𨗉之皃也經文從口作哃非也）。

Limpid and thorough (洞清, the ancient script has the two forms 衕 and 迵, identical, pronounced with the fanqie 徒 + 貢 [dòng]; we note that 洞 is like penetrating through, and is also the appearance of profound depth; the sūtra text writes it with the radical 'mouth' as 哃, which is incorrect).