Can you explain the significance of the story in Chapter 35 where grapes became seedless for a devotee?

The story from Chapter 35 details the visit of a skeptical man, Boss Dharamsee, who was driven by curiosity about the 'miracles' in Shirdi. A devotee had offered grapes with seeds to Baba. Baba began distributing them, but Dharamsee, who disliked this variety, was internally conflicted. He thought, 'If he is a saint, how does he not know That I do not like these grapes?' Despite his reluctance, when Baba insisted he eat them, Dharamsee obeyed. To his profound surprise, the grapes were completely seedless in his mouth. The significance of this miracle, as Chapter 35 recounts, is that it was a direct, divine response to his unspoken doubts and personal aversion. It showed him that Baba knew the 'intent of my mind,' which shattered his 'clinical scrutiny' and transformed him from a skeptic into a firm devotee.