From the family's perspective in Chapter 34, what was the basis for their belief that Sai Baba's Udi could succeed where all else had failed?

The family's belief in the potential of Sai Baba's Udi was born from a combination of complete desperation and the powerful reputation of the saint. As described in Chapter 34, they had already tried and failed with all available medical treatments, leaving them worried and distressed. It was at this lowest point that "word reached their ears of a famous Avaliya (saint) living in Shirdi." Their hope was kindled by what they heard: that "the great saint of Shirdi, Sai Maharaj, the King of Yogis, could truly heal diseases just by his sight." More specifically, they were told, "If he applies Udi with his own hand, even incurable diseases perish." For a family facing an incurable ailment, this promise of a miracle was their last hope. They reasoned, "What is there to lose in gaining this experience?" Their faith was thus placed in the extraordinary power attributed to Sai Baba, making the Udi a tangible vessel for that power.