Verse 21

यत्सर्वशास्त्रसिद्धान्तो यत्सर्वहृदयानुगम् ।यत्सर्वं सर्वगं सार्वं यत्तत्तत्सदसौ स्थितः

In plain words

whatever is the settled conclusion of every śāstra, whatever follows into every heart, whatever is the all, the all-pervading, the universal -- that, that very sat, he stood as.