Can you explain the symbolic meaning of throwing the wheat flour on the village boundary?

The act of throwing the flour on the village boundary, or 'Shiwar', was the culmination of Sai Baba's symbolic effort to eradicate a cholera epidemic, as narrated in Chapter 1. The wheat itself symbolized the disease, and the grinding process represented its destruction. Therefore, the resulting flour was the neutralized epidemic. By commanding the women to cast this flour onto the boundary line of the village, Baba was performing a divine play to symbolically and spiritually cleanse the community and push the disease out. The text states that after the flour was thrown near the stream at the boundary, the disease began to recede, demonstrating the success of this inconceivable cause and effect.