What examples does Chapter 35 provide to illustrate the power and proper use of Sai Baba's Udi?

Chapter 35 offers two distinct examples of the power of Sai Baba's Udi. First, it tells of a gentleman who suffered from bad dreams and could not sleep. He was cured by simply keeping a packet of Udi under his pillow and worshipping Baba's picture. The text states that Udi, when used in a crisis, gives the desired result. The second, more detailed story involves the Nevasakar family's Shraddha ceremony. Facing a food shortage, the mother-in-law placed Udi in the food pots. As described in Chapter 35, this act of faith caused the food to multiply, feeding everyone with plenty to spare. This illustrates that Udi's power is tied to the devotee's faith.