Chāndogya Upaniṣad 7.9.2

7.9.2

sa yo 'nnaṃ brahmety upāste \
annavato vai sa lokān pānavato 'bhisidhyati \
yāvad annasya gataṃ tatrāsya yathākāmacāro bhavati yo 'nnaṃ brahmety upāste \
asti bhagavo 'nnād bhūya iti \
annād vāva bhūyo 'stīti \
tan me bhagavān bravītv iti \\709.2\

2. He who reverences Food as Brahma—he, verily, attains the worlds of Food and Drink. As far as Food goes, so far he has unlimited freedom, he who reverences Food as Brahma.’ ‘Is there, Sir, more than Food?’ ‘There is, assuredly, more than Food.’ ‘Do you, Sir, tell me it.’