What were the extraordinary yogic practices or 'experiments' of Sai Baba mentioned in the beginning of Chapter 7?

Chapter 7 of the Shri Sai Satcharitra briefly describes some of Sai Baba's astounding yogic abilities, which he used to bear the sufferings of his devotees. The text mentions his practice of Khanda-yoga, which is described as the disjointing of his own limbs. It also refers to experiments like Dhauti (a cleansing of the stomach) and Poti. The chapter provides a vivid and miraculous description of these practices, stating that sometimes his hands, feet, and head were separated from his body and then joined back together as they were before. These accounts illustrate the extent to which he would go for the benefit of others, even to the point of wearing out his own body.