What is the symbolic meaning behind the flour being thrown on the village boundary?

The symbolic meaning of this act is explained quite clearly in Chapter 1. The wheat that Baba ground was not just grain; it represented the cholera epidemic that was causing great suffering. Therefore, the grinding process was a symbolic act of destroying the disease. The resulting flour was the manifestation of the vanquished epidemic. Baba's instruction to the women to 'go and throw this flour on the village boundary (Shiwar) now' was the crucial final step. By casting the 'flour' out of the village and near a stream, they were symbolically expelling the disease itself. The text confirms the success of this act, stating that from that moment, 'the disease began to recede' and the 'bad days ended immediately,' showcasing Baba's divine skill.