Verse 16

वयमात्मेति यैषा वो बभूव किल वासना ।तत्त्वविस्मृतिजाता हि दृष्टरज्जुभुजङ्गवत्

In plain words

"This vāsanā of yours — 'we are the self' — which, it seems, came to be, was born of forgetting the truth, like the snake seen in a rope."