In the story of Narayanrao's friend with the scorpion sting, was it the substance applied or the faith that mattered more?

The narrative in Chapter 33 strongly suggests that faith was the crucial element. When Narayanrao could not locate the actual Udi from Shirdi, he used simple ash from burnt incense sticks found near Baba's picture. The text explicitly states that he "considered it as Udi in that moment" and applied it with prayer. The miraculous and immediate healing that followed is presented as a direct result of this belief. The passage highlights that even though it was just incense vibhuti, it produced the same effect as Udi because it was applied with unwavering faith and the conviction that it was a sacred offering from Baba's path.