How exactly did witnessing the wheat-grinding miracle inspire Hemadpant to write the Shri Sai Satcharitra?

The narrator, Hemadpant, was profoundly moved by the wheat-grinding incident, which became a primary catalyst for writing the Shri Sai Satcharitra. In Chapter 1, he expresses his initial bewilderment at Baba's actions. However, after learning that the wheat represented the cholera epidemic and that grinding it was Baba's method of eradicating the disease, he was struck by the "inconceivable cause and effect." This realization sparked a deep emotional and spiritual response within him. He describes how "love surged in my heart" and he felt a powerful urge "to sing the sweet story of Baba to my heart's content." This overwhelming feeling of love and wonder at Baba's divine plays and incomprehensible power is what inspired him to surrender to Sainath and compose the sacred book, as mentioned at the end of the chapter.