金光明經文句記 4.261

4.261

二、引經及事。屈步蟲者，要因前脚得移後足，方於假名伏惑。又於實法起見，如彼蟲也。

Second, citing sūtras and worldly examples: as for the inchworm, it must rely on its front legs to move its hind legs forward before it can subdue afflictions with respect to provisional designations; yet it gives rise to views regarding real dharmas, just like that worm.