Verse 23

सदा सर्वं सदेवेदं नेह द्वित्वान्यते क्वचित् ।विद्येते विद्यया व्याप्तं जगन्नेतरया धिया

In plain words

Always, all this is sat alone; duality and otherness exist nowhere here at all. The world is pervaded through vidyā — not through any other understanding.