The works of Ādi Śaṅkarācārya

Sanatsujātīyam

Bhashya

Bhashya

यद्वै देवा उपासते यस्मादर्को विराजते ॥

In plain words

This is what the gods worship. This is what the sun shines from.

Close to the Sanskrit

That which, indeed, the gods worship; from which the sun shines forth.