What is the significance of Udi as described in Chapter 34 of the Shri Sai Satcharitra?

The significance of Udi, or sacred ash, is that it is a powerful, divine remedy capable of curing ailments when all other methods fail. Chapter 34 of the Shri Sai Satcharitra continues the narration on the greatness of Udi, describing its qualities and characteristics. This chapter presents Udi's majesty through an illustrative story, emphasizing its power to heal. It explicitly states that a terrible disease like a bone-cyst (Hadyavran), which could not be cured by any other remedy, was completely uprooted by smearing Udi from Sai's hand. This demonstrates Udi's role as a vehicle for Sai Baba's grace and healing power.