Why does moshe say he came back in the book Night?

In Elie Wiesel's "Night," Moshe the Beadle returns to Sighet after being deported to a concentration camp to warn the Jewish community about the impending dangers they face. He shares harrowing experiences of the atrocities he witnessed, urging them to escape while they still can. However, his warnings are largely ignored, as the townspeople find it hard to believe such horrors could happen to them. Moshe's return serves as a poignant reminder of the importance of heeding warnings and acknowledging the reality of oppression.