瑜伽論記 20.234

20.234

合但總合，言不能尋思等者，一解，以現量不能思，比量不能度，聖言量不能令信故也。又解：種種意解故言不能尋思，別異意解故言不能比度，變異意解故言不能信解也。

The application only applies them generally. Regarding 'cannot be reached by discursive thought', and so forth: one explanation is that it cannot be thought through direct perception, cannot be inferred through inference, and cannot be made to be believed through authoritative testimony. Another explanation: because of various inclinations, it says it cannot be reached by discursive thought; because of differentiated inclinations, it says it cannot be inferred; because of fluctuating inclinations, it says it cannot be believed and understood.