Life-force is the Brahman

There are some who maintain that food is the Brahman. This is not quite true because, in the absence of the life-force, food rots. There are some who maintain that the life-force is the Brahman. This is not quite true, because in the absence of food, the life-force dries up. But when the life-force and food are united, they are the Brahman. That is what sage Pratrida was told by his father. He who realizes this, remains surrounded by all living beings and gives them pleasure.

"Upanishads"