Based on the provided text from Chapter 10, how did Sai Baba demonstrate his powers (Siddhis) in his daily life?

The provided text from Chapter 10 gives a clear example of Sai Baba's Siddhis through his sleeping habits. The very act of sleeping on a narrow plank, just one span wide and suspended by rags, is presented as a feat beyond ordinary human capability. The chapter posits that the plank couldn't have supported His weight on its own and that it was His great Siddhis that made it possible. It further suggests His mastery over form, stating that He possessed 'Anima' (the power to become minute) and that His movements were as easy as those of flies or ants, making them imperceptible to onlookers.