What is the main story and message conveyed in Chapter 34 of the Shri Sai Satcharitra?

Chapter 34 continues the narration on the glory of Udi, illustrating its power through a specific story. It tells of a doctor from Malegaon whose nephew suffered from a terrible bone-cyst, also called Hadyavarn. As detailed in the chapter, all medical treatments, both native and foreign, including surgery, had failed. The family then heard of the great saint Sai Maharaj of Shirdi and decided to seek his help as a last resort. Upon their arrival and heartfelt plea, Sai, the embodiment of compassion, reassured them. He gave them Udi and instructed them to smear it on the wound, promising that those who seek shelter in the Masjid shall never face downfall. This story, as Chapter 34 explains, highlights the incredible healing power of Udi and faith in Sai.