The works of Ādi Śaṅkarācārya

Sanatsujātīyam

p. 231

p. 231

लोकस्वभाववृत्तिर्हि निमेषोन्मेषवत्सदा ।

In plain words

The world runs on its own nature, and always has: shutting, opening, shutting again — like an eye that never stops blinking.

Close to the Sanskrit

For the functioning of the world's own nature is always like the closing and the opening of the eyes.