What extraordinary yogic practices or physical feats of Sai Baba are mentioned in Chapter 7?

Chapter 7 describes some of Sai Baba's astounding yogic abilities, which he used for the benefit of others. The text specifically mentions his practice of Khanda-yoga, which involved the disjointing of his own limbs. It states that through this practice, along with Samadhi, he would sometimes separate his hands, feet, and head from his body and then join them back together as they were before. Other experiments like Dhauti (a cleansing of the stomach) and Poti are also mentioned. The chapter notes that he wore out his own body and bore the sufferings of his devotees, suggesting these incredible feats were part of his compassionate nature.