Can you describe the extraordinary yogic practices of Sai Baba mentioned in this chapter?

Chapter 7 mentions several of Sai Baba's extraordinary practices and experiments. It specifically refers to his practice of Khanda-yoga, which is described as the disjointing of his own limbs. The text states that sometimes his hands, feet, and head were separated and then joined back together as before. In addition to this, the chapter notes his experiments with Dhauti, a yogic cleansing technique for the stomach, and another practice called Poti. These practices highlight how he toiled for the benefit of others and even bore the sufferings of his devotees upon his own body.