Verse 18

पयस्तरङ्गयोरैक्यं यथैव परमार्थतः ।नाविद्यात्वं न विद्यात्वमिह किंचन विद्यते

In plain words

Just as water and wave are, in the ultimate truth, one alone -- so here neither the state of avidyā nor the state of vidyā exists at all.