Verse 66

यो मतः सर्व एकात्मा परं ब्रह्मेति निश्चयः ।चिदात्मा ब्रह्म सत्सत्यमृतं ज्ञ इति नामभिः

In plain words

-- which is held to be the one self of all, [as] the settled conviction 'the supreme Brahman' -- the cit-self, Brahman, sat, satya, ṛta, jña -- by these names --