The introduction to Chapter 7 mentions several of Baba's practices. Can you describe the yogic miracles and experiments mentioned?

Chapter 7 of the Shri Sai Satcharitra details some of Sai Baba's extraordinary yogic abilities and his willingness to bear suffering for others. The text describes his practice of Khanda-yoga, a miraculous state involving the disjointing of his own limbs. It is mentioned how his hands, feet, and head would sometimes be separated and then joined back together as before. Additionally, the chapter alludes to other experiments like Dhauti, which is a method for cleansing the stomach, and Poti. These practices, as described in Chapter 7, highlight how Baba toiled for the benefit of others and demonstrated complete mastery over his physical form.