Śatapatha Brāhmaṇa ("of a hundred paths") 4.4.1.9

4.4.1.9

yadveva vaiśvadevaṃ grahaṃ gṛhṇāti | mano ha vā asya savitā sarvamidaṃ viśve devā idamevaitatsarvaṃ manasaḥ kṛtānukaramanuvartma karoti tadidaṃ sarvam manasaḥ kṛtānukaramanuvartma

And further why he draws the Vaisvadeva graha. Savitri, forsooth, is his rind, and the Visve Devâh (All-gods, or all the gods) are everything here: he thus makes everything here subservient and obedient to the mind, and hence everything here is subservient and obedient to the mind.