What is the central message that Chapter 34 conveys about Sai Baba's Udi and his nature?

The central message of Chapter 34 is the immense and miraculous healing power of Sai Baba's Udi, which can succeed where all other remedies, including advanced medical science, fail. The chapter uses the story of the incurable bone-cyst to illustrate that the Udi, when applied with faith, can uproot even the most terrible diseases. Furthermore, the chapter highlights Sai Baba's nature as the "embodiment of compassion." His response to the suffering family was not just to provide a cure but to offer complete reassurance, telling them to be "worry-free" and promising that those who seek his shelter will never face downfall. Thus, the chapter emphasizes both the power of the Udi and the boundless compassion of the Guru who provides it.