In “Bud, not Buddy”, Why doesn't Bud want to go to a foster home?

What is the phrase a tiny shoot of phase prikled by the mind

Read lines 44 - 47 from the poem "your laughter and answer the question, deny me bread, air, light, spring, but never your laughter for i would die

Wiesel's speech begins after auschwitz the human condition is not the same nothing will be the same identify where similar language is repeated later in his speech what is the effect of this repetition