The Satcharitra mentions Baba's yogic powers. Can you describe what 'Khanda-yoga' was and other practices mentioned?

Chapter 7 of the Shri Sai Satcharitra briefly describes Sai Baba's extraordinary yogic abilities. It mentions his practice of Khanda-yoga, which is described as the disjointing of his limbs. In this state, his hands, feet, and head would sometimes appear separated from his body and then be joined back together as before. The text also notes that he performed experiments like Dhauti, a yogic technique for cleansing the stomach. These accounts illustrate how he toiled for others, wore out his own body, and even bore the sufferings of his devotees through his profound spiritual mastery.