Why is madame schacter particularly distressed?

Madame Sachachter was a passenger on the train on the way to Auschwitz concentration camp. The first night on the train she started screaming that she saw fire and a giant furnace outside of the only window on the train. The people looked to see if she was really seeing the fire. Nothing was there, and people pitied her, saying she had gone mad. Her young son was the only one who was there to comfort her. Every night she would continue to scream about the fire. It got to the point where men would hit her to keep her quiet. The way she talks about the fire and the furnace is almost as if she can see into the future. She managed to predict the fate of many Jews even though some found her mad.