Mokṣa-Sannyāsa Yoga · Verse 20
सर्वभूतेषु येनैकं भावमव्ययमीक्षते | अविभक्तं विभक्तेषु तज्ज्ञानं विद्धि सात्त्विकम्
sarva-bhūteṣu yenaikaṃ bhāvam avyayam īkṣate | avibhaktaṃ vibhakteṣu taj jñānaṃ viddhi sāttvikam
By which in all beings one sees a single indestructible being, undivided in the divided — know that knowledge as sāttvika.
Sāttvika knowledge: sees ekam bhāvam — a single being/substance. Avyayam — indestructible, immutable. Avibhaktam — undivided, one.
Where: sarva-bhūteṣu — in all beings. Vibhakteṣu — in those that appear divided (bodies). To see the one in the many, the ātman in all jīvas. This is sāttvika-jñāna, realization of unity.