तन्न किंचिच्च किंचिद्वा तत्सद्ब्रह्मैव शाश्वतम् ।तद्वस्तु तदुपादेयं यदविद्या निवर्तते
In plain words
That is nothing whatever, and yet something; that is the existent, Brahman itself, eternal; that is the real thing, that is what is to be taken up, in which avidyā ceases.