The text mentions Sai Baba performing some unusual physical feats. What were Khanda-yoga and Dhauti as described in Chapter 7?

Chapter 7 provides a glimpse into some of Sai Baba's extraordinary yogic practices, which demonstrated how he toiled for others and even bore the sufferings of his devotees. The chapter mentions his practice of Khanda-yoga, which is described as the disjointing of his limbs. The text states that sometimes his hands, feet, and head were separated and then joined back together as before. Along with this, it mentions experiments like Dhauti and Poti, which are referred to as methods for cleansing the stomach. These descriptions in Chapter 7 serve to illustrate the mysterious and powerful nature of Baba, who could manipulate his own physical body in seemingly impossible ways.