AITAREYA UPANISHAD · 1.3.2
सोऽपोऽभ्यतपत् ताभ्योऽभितप्ताभ्यो मूर्तिरजायत । या वै सा मूर्तिरजायतान्नं वै तत् ॥ २ ॥
so’po’bhyatapat tābhyo’bhitaptābhyo mūrtirajāyata । yā vai sā mūrtirajāyatānnaṃ vai tat ॥ 2 ॥
The Spirit brooded in might upon the waters and from the waters brooded mightily over Form was born. Lo, all this that was born as form, is no other than Food.
Sri Aurobindo · CWSA 18, p. 200