I read about a scorpion sting being cured without real Udi. How did that happen with Narayanrao's friend?

This remarkable incident is detailed in Chapter 33. When a friend of Narayanrao was stung by a scorpion and suffering severe pain, they could not find any of Baba's Udi. In this moment of crisis, Narayanrao prayed to a picture of Sai Baba. He then noticed the ash from burnt incense sticks that had fallen at the base of the picture frame. The text explains that he "considered it as Udi in that moment." He took a pinch of this ash, applied it to the sting while chanting Sai's name, and the pain immediately subsided. This miracle demonstrated that the power was not in the substance itself but in the profound faith that it was Baba's sacred Udi.