Brahman according to Taittriya upanishad.

Varuna instructs his son Bhrigu on the immanence of Brahman in the 3 rd valli of Taittriya upanishad.
The teaching is that food should be looked upon as Brahman .For from food indeed all are born in this world and by food do they live since it is the food we eat that enable us to speak, think,act and exercise our will and understanding,and after death ,all beings become food for other beings.

The following sloka exhorts.

Annam na nindhate!Annam na parichksheeti!Annam bahu kuveerth!Na kanchan vastho prathyachsheeth !

Meaning:

We should not speak ill of food!We should not throw away food!We should produce plenty of food!We should let no one who comes for food to be turned away!

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