What was so miraculous about Sai Baba's sleeping arrangements as described in Chapter 10?

Chapter 10 describes Sai Baba's unique and seemingly impossible sleeping arrangement. He would sleep on a very narrow wooden plank, just four cubits long and one span wide, which was suspended from the rafters by old rags. The chapter highlights the miraculous nature of this, questioning how such a flimsy setup could support Baba's weight. It concludes that this was possible due to His Great Siddhis, or divine powers, making the plank's support merely nominal. Furthermore, his movements were imperceptible; no one ever saw him get on or off the plank, adding to the mystery and wonder of his lifestyle.