The book mentions Sai Baba performing some extraordinary yogic feats. Can you describe what Khanda-yoga was?

Yes, Chapter 7 describes some of Sai Baba's remarkable yogic abilities, which he undertook for the benefit of others. The text specifically mentions his practice of Khanda-yoga, which involved the disjointing of his own limbs. It is described as a process where his hands, feet, and head would be separated from his body and then joined back together as they were before. This incredible feat was mentioned alongside other practices like Dhauti (a cleansing of the stomach), highlighting his complete mastery over his physical form and his willingness to wear out his own body for the sake of his devotees.