From the first berakhah of birkat hamazon:
הזן את הכל
Hazan et hakol
God is the one who nourishes all of us.
This of course refers to food, but maybe something else as well. We all need a little spiritual sustenance. Have a bagel, but have a piece of history, philosophy or theology on the side. God is the source of food, but also gives us the wisdom to understand. Make sure to feed all of your needs!