Text:

भयादस्याग्निस्तपति भयात्तपति सूर्यः ।
भयादिन्द्रश्च वायुश्च मृत्युर्धावति पञ्चमः ॥ ३ ॥

bhayādasyāgnistapati bhayāttapati sūryaḥ |
bhayādindraśca vāyuśca mṛtyurdhāvati pañcamaḥ || 3 ||

3. From fear of him, fire burns; from fear, the sun shines; from fear, Indra and Wind; and Death, the fifth, speeds.

Shankara’s Commentary:

How the world lives from fear, of him, is explained. The fire burns from fear of him, the lord of all; the sun shines from fear; from fear, Indra and Wind; and Death, the fifth, runs; for, if Brahman did not exist as controller of the competent protectors of the world, like one with the thunderbolt uplifted in his hand, their well-regulated activity, as that of the servants trembling from fear of the master would not be possible.