Chapter 10 describes some of Sai Baba's extraordinary abilities. Can you explain his sleeping arrangements and how they demonstrated his powers?

Chapter 10 provides a fascinating account of Sai Baba's sleeping habits, which showcased his divine powers. He would sleep on a narrow wooden plank, merely four cubits long and one span wide, which was suspended from the rafters like a swing using old rags. Lamps would burn at his head and feet as he rested. The text highlights that his movements onto and off this precarious plank were completely imperceptible to anyone. This feat, as explained in the chapter, was attributed to his great Siddhis (powers), suggesting the plank was merely for show and that he could utilize the power to become minute, like a fly or an ant, making his movements undetectable.