what repeating image is used in the paragraph beginning with "the sound of the bell brought us back to reality."

"The sound of the bell brought us back to reality. We had to go back to bed. We came back from very far away. I looked up at my father's face, trying to glimpse a smile or something like it on his stricken face. But there was nothing. Not the shadow of an expression. Defeat" (Wiesel 69).