Chapter 7 mentions some extraordinary yogic practices that Baba performed. Could you elaborate on what these were?

Chapter 7 of the Shri Sai Satcharitra describes how Sai Baba demonstrated mastery over his physical body through advanced yogic practices. The text specifically mentions his practice of Khanda-yoga, which involved the supernatural ability to disjoint his limbs and separate his hands, feet, and head from his body, only to join them back together again as before. In addition to this, he also performed internal cleansing experiments like Dhauti (cleansing of the stomach) and Poti. These accounts, found in the chapter's introduction, illustrate how he would toil for others and even bear their sufferings, sometimes by putting his own body through such extreme and miraculous trials.