When Bruno dresses in the filthy striped pajamas he remember something his grandmother once said?

When Bruno puts on the filthy striped pajamas, he recalls his grandmother's Words about the importance of not forgetting one's roots and the dignity of each person, regardless of their circumstances. This memory highlights the stark contrast between his previous life and the harsh reality he now faces. It serves as a poignant reminder of the innocence lost and the moral complexities surrounding his situation. Bruno's reflection underscores the themes of identity and compassion in the story.