I would say Food stamps. You can go with that or get a second opinion. Sorry if it's wrong.
The key reason to include metaphors in a literary work?
to create new and surprising comparisons and deepen understanding.
What did we say to each other
that now we are as the deer
who walk in single file
with heads high
with ears forward
with eyes watchful
with hooves always placed on firm ground
in whose limbs there is latent flight
