How did Baba help Boss Dharamsee overcome his ego and initial reservations during his first visit?

Sai Baba helped Boss Dharamsee overcome his ego by demonstrating perfect knowledge of his innermost thoughts and preferences. As described in Chapter 35, Dharamsee was preoccupied with his dislike for seeded grapes and the fact they were unwashed, creating a mental barrier. Baba addressed this not through argument, but through a miracle. By making the grapes seedless for Dharamsee, Baba showed him that his internal state was completely transparent to him. This act, according to Chapter 35, stunned Dharamsee, causing "all his ego" to drop away and his "previous resolves" to vanish, replaced by a newfound love for the saint. The experience proved that his personal ego was insignificant before Sai's power.