How was grinding wheat connected to driving away the cholera epidemic in the village?

The connection between grinding wheat and curing the epidemic was a display of Baba's inconceivable power and divine play, which defied conventional cause and effect. The source material from Chapter 1 explains that the act was symbolic. The wheat itself was not ordinary grain but represented the cholera epidemic that was afflicting the village. By grinding the wheat in the mill, Baba was metaphorically grinding the 'enemy' or the disease itself. When he instructed the women to throw the resulting flour on the village boundary, he was effectively casting the illness out of the village. Chapter 1 notes that after the flour was thrown near the stream, the disease began to recede, demonstrating Baba's unique and mysterious methods.