yasmānnayanā raśmayo darpaṇāditalapratihatā nivartamānāḥ svamukhādinā sambandhyante tatas te tathā mukhādipratītihetavo bhavanti /
Because the visual rays from the eyes, when striking the surface of the mirror and other [reflective surfaces] and turning back, connect with one's own face and other [features], they thus become causes for the cognition of [one's] face and other [features].