How does Chapter 10 describe Sai Baba's mysterious sleeping habits and what do they reveal about his powers?

Chapter 10 provides a fascinating account of Sai Baba's sleeping arrangements, which highlight his divine powers. He would sleep on a narrow wooden plank, just four cubits long and one span wide, which was suspended from the rafters with old rags like a swing. What made this truly mysterious was that his movements were imperceptible; no one ever witnessed when he climbed up onto the plank or when he descended. The text posits that the plank, which seemed too fragile to support a person, was merely a prop, and Baba's ability to use it was a demonstration of his Great Siddhis (powers). It even suggests he possessed 'Anima', the power to become minute, allowing his movements to be as subtle as those of flies or insects.