Bhagavatapurana 4.29.10

4.29.10

paścime ity adho dvārau gudaṃ śiśnam ihocyate /
khadyotāvirmukhī cātra netre ekatra nirmite /
rūpaṃ vibhrājitaṃ tābhyāṃ vicaṣṭe cakṣuṣeśvaraḥ //

10. The two postern gates are the passages in the lower part; Khadyota and Avirmukhi are respectively the left eye and the right eye (on account of feeble and strong vision) and they are placed adjacent to each other; through these two gates and by means of the sense of seeing imbedded in them, the Jiva, Puranjana (lord of the body) perceives colour which is the bright country at large.