Can you summarize the story of Sai Baba grinding wheat as described in the texts?

Certainly. The story, found in Chapter 1, begins one morning when Sai Baba unexpectedly started preparations to grind wheat. He set up a grinding stone in the mosque, measured out a large quantity of wheat, and began the work himself. The sight was so unusual that villagers gathered in wonder, but no one dared to ask him why he was doing it. As news spread, four women rushed into the mosque, gently took the grinding handle from Baba, and finished the task while singing songs of his divine plays. Baba's feigned anger turned into a loving smile at their devotion.