सर्वद्वारेषु देहेऽस्मिन्प्रकाश उपजायते ।ज्ञानं यदा तदा विद्याद्विवृद्धं सत्त्वमित्युत ॥
sarvadvāreṣu dehe 'smin prakāśa upajāyate |jñānaṃ yadā tadā vidyād vivṛddhaṃ sattvam ity uta ||
- सर्वद्वारेषु · sarvadvāreṣu
- in all the gates (senses)
- देहे · dehe
- in the body
- अस्मिन् · asmin
- in this
- प्रकाशः · prakāśaḥ
- light, clarity
- उपजायते · upajāyate
- arises
- ज्ञानम् · jñānam
- understanding
- यदा · yadā
- when
- तदा · tadā
- then
- विद्यात् · vidyāt
- one should know
- विवृद्धम् · vivṛddham
- greatly increased
- सत्त्वम् · sattvam
- lucidity
- इति · iti
- thus
“When light and understanding arise in all the gates of this body, then know that lucidity has grown strong.”
— Original plain-language translation
Krishna now gives practical diagnostics: sattva shows itself as clear perception through every sense. The teaching is empirical — check your own experience rather than taking anyone's word. This diagnostic trio (verses 11–13) is one of the Gita's most usable passages.
— Reader's notes (original)