How did Sai Baba's actions with the grapes specifically address Boss Dharamsee's inner thoughts and doubts?

Sai Baba's handling of the grape incident was a direct and precise response to Boss Dharamsee's inner turmoil, as detailed in Chapter 35. Dharamsee silently thought, 'If he is a saint, how does he not know That I do not like these grapes?' In response to this very doubt, Baba gave him even more of the grapes, showing that he was perfectly aware of the resistance. The ultimate miracle was not just in changing the grapes, but in doing so at the exact moment of Dharamsee's reluctant obedience. When Dharamsee finally ate them on command, he found them seedless. This proved to him that Baba knew the 'intent of my mind' and could transform the undesirable (seeded, unwashed grapes) into something beneficial and perfect, shattering his clinical scrutiny as Chapter 35 recounts.