Chapter 7 mentions some intense yogic practices Sai Baba performed. Can you explain what these were and what they involved?

Chapter 7 of the Shri Sai Satcharitra describes Sai Baba's remarkable and intense yogic practices, which he undertook for the benefit of others. These included Khanda-yoga, which involved the disjointing of his limbs, where his hands, feet, and head would be separated and then joined back together as before. The text also mentions experiments like Dhauti, which is a cleansing of the stomach, and Poti. Through these practices, Baba demonstrated his mastery over his physical body and his willingness to endure suffering for his devotees.