What can we learn about the true nature and power of Sai Baba's Udi from the stories in chapter 33?

Chapter 33 reveals that the power of Udi is deeply connected to faith and Baba's grace, rather than being solely inherent in the physical ash. The chapter begins by calling Udi "supremely auspicious" and a tool for both worldly and spiritual welfare. The story of Narayanrao's friend being cured by incense ash, which was merely considered as Udi, is a prime example. This miracle, as chapter 33 explains, happened because the ash was applied with the feeling and faith that it was Baba's Udi. Similarly, the Jyotishi Buwa's cure was attributed to both the Udi and his continuous 'Nama Smarana' (chanting of the name). This suggests that Udi is a powerful medium that channels the devotee's faith and invites Baba's intervention, proving that the feeling behind the act is as important as the substance itself.