What does juliek one of the musicians say that shows the callousness that life in a concentration camp is creating

"This ceremony, will it be over soon? I'm hungry..."

Juliek says this as they are watching a young man be hanged. It shows that callousness (or harshness) that life in the concentration camp is creating because while a man is being hanged, all Juliek can think of is hunger. He is wishing for the "ceremony" to be over soon, and yet, for it to be over, a man must hanged. The lack of compassion, or even respect, for the person being hanged is surprising as Juliek has seemed to be one of compassion in all his encounters with Wiesel so far.

it the climax in the poem

that is true because that is something they fulfill for their work.