Verse 18.20
सर्वभूतेषु येनैकं भावमव्ययमीक्षते । अविभक्तं विभक्तेषु तज्ज्ञानं विद्धि सात्त्विकम् ॥ १८.२० ॥
जिस ज्ञान से मनुष्य पृथक्-पृथक् सब भूतों में एक अविनाशी परमात्मा को विभागरहित स्वभाव से स्थित देखता है, उस ज्ञान को तो तू सात्विक जान ।
When one can see Eternity, Infinity, and an undivided spiritual nature in things that are mortal, perishable, and divided in their spiritual nature, he has acquired the pure SAATVIC knowledge (or the knowledge of ‘goodness,’ concerning the spiritual soul beyond the body).