ततस्तु तौ लक्षणया सुलक्ष्यौतयोरखण्डैकरसत्वसिद्धये ।नालं जहत्या न तथाजहत्याकिं तूभयार्थैकतयैव भाव्यम् ॥ २४९ ॥
In plain words
So the two words are grasped not by their surface meaning but by what they point to beneath it — their single, undivided essence. Simply dropping the literal sense outright won't get you there, and neither will keeping it whole and untouched. What's needed is the meaning where both meet as one.
Close to the Sanskrit
Then, indeed, those two [words] are to be well grasped through implication, for the establishment of their undivided single essence. Neither the 'abandoning' [method] nor likewise the 'non-abandoning' [method] is sufficient; rather, one must contemplate through the oneness of [a portion of] both meanings alone.