One verse

Bhagavad Gita 13.34

13.34

यथा प्रकाशयत्येकः कृत्स्नं लोकमिमं रविः | क्षेत्रं क्षेत्री तथा कृत्स्नं प्रकाशयति भारत ||१३-३४||

yathā prakāśayatyekaḥ kṛtsnaṃ lokamimaṃ raviḥ . kṣetraṃ kṣetrī tathā kṛtsnaṃ prakāśayati bhārata ||13-34||

yathā
as
prakāśayati
illuminates
ekaḥ
one
kṛtsnam
the whole
lokam
universe
imam
this
raviḥ
sun
kṣetram
this body
kṣetrī
the soul
tathā
similarly
kṛtsnam
all
prakāśayati
illuminates
bhārata
O son of Bharata

O son of Bharata, as the sun alone illuminates all this universe, so does the living entity, one within the body, illuminate the entire body by consciousness.