vidyamānarūpagrahaṇasādhakatamaśaktikaṃ cakṣuḥ, anupahatatve sati rūpādidṛkṣāyāṃ prekṣāpūrvakāriṇā karaṇatvena vyāpāryamāṇatvāt, rūpaparicchedanadarśanād vā /
The eye possesses the most effective instrumental power for grasping presently existing color, because while being undamaged, it is employed as an instrument by one who acts deliberately when desiring to see color, or because it is observed to determine color.