Can you describe Sai Baba's unusual sleeping arrangement as detailed in Chapter 10 and explain why it was considered miraculous?

Chapter 10 provides a fascinating description of Sai Baba's sleeping place. He would sleep on a narrow wooden plank, which was only four cubits long and a mere one span (about nine inches) wide. This plank was not on a stand but was suspended from the rafters of the mosque by old rags, like a swing. The miraculous aspect, as detailed in chunks 2 and 3, was not just that he slept on such a precarious surface, but that his movements were imperceptible. No one ever saw him climb up onto the plank or get down from it. The text suggests this was possible due to his Great Siddhis (divine powers), implying the plank's physical support was secondary to his spiritual capabilities.