Can you explain the story of Sai Baba grinding wheat and what it actually meant?

In a fascinating event described in Chapter 1, Sai Baba unexpectedly began grinding wheat in the mosque, an act that puzzled onlookers as he lived on alms and had no need for flour. Four women, initially moved to help, soon became greedy, hoping to take the flour for themselves. Baba, feigning anger, had them take the finished flour and throw it on the village boundary. The true purpose of this divine play was later revealed: the wheat was not merely grain but a symbol for a cholera epidemic ravaging the village. By grinding the wheat, Baba was symbolically destroying the disease, and by having the 'flour' cast out, he drove the epidemic away, bringing an end to the villagers' suffering. This demonstrates that his actions, while mysterious, were for the welfare of others.