Bhagavad Gita 18.20

सर्वभूतेषु येनैकं भावमव्ययमीक्षते।अविभक्तं विभक्तेषु तज्ज्ञानं विद्धि सात्त्विकम्॥

sarvabhūteṣu yenaikaṃ bhāvamavyayamīkṣate |avibhaktaṃ vibhakteṣu tajjñānaṃ viddhi sāttvikam ||

That by which one sees the indestructible Reality in all beings, not separate in any of them—know that knowledge to be Sattvic.

That knowledge which sees the One Indestructible in all beings, the One Indivisible in all separate lives, can be truly called Pure Knowledge.

Our plain-language meaning of this verse is waiting for scholar review.