Hello teacher! The whole poem is a brilliant allegory, according to my vision. A beautiful piece of resurrection of lost faith. He tells us about the greening of the "forest" that now presents new "foliage", more to the taste of the gardener who sows without stopping, even if his back hurts.
I rescue this line, as a heart:

The forest exchanges my crate for a cradle,
I trade it a hut for a home.

Now, "his" forest, "his" people, has turned his grave into a cradle, he no longer dies, he is reborn and aspires to be able to build a common warm place where everyone fits, forming a family, a home.