Verse 21

विचारोत्थात्मविज्ञानं ज्ञानमंग विदुर्बुधाः ।ज्ञेयं तस्यान्तरेवास्ति माधुर्यं पयसो यथा

In plain words

The wise know, dear one, that jñāna is knowledge (vijñāna) of the ātman born of vicāra; the knowable exists right within it, as sweetness within milk.