kiñca kūpādiṣu ca dūrādhaḥ saṃviṣṭasyārkādeḥ kathaṃ grahaṇaṃ bhavet / yadi tatra pratibimbaṃ notpannaṃ syāt /
Moreover, how could there be perception of the sun [appearing] deep down in wells and such [places], if a reflection were not produced there?