tatra prayogaḥ yadyatrāgṛhītasamarthaṃ na tat tatra savikalpakaṃ bhavati, tadyathā cakṣur vijñānaṃ gandhe, agṛhītasamayaṃ ca pratyakṣaṃ nīlādyātmanīti vyāpakaviruddhopalambhaḥ //
Here is the application: Whatever has no convention grasped with regard to it cannot have determinate perception of it, just as visual cognition [cannot grasp] odor; and perception of the nature of blue etc. has no convention grasped [regarding it] - [this is] an observation contradicting the pervader.