Chapter 7 mentions some incredible yogic practices Sai Baba performed. Can you explain what Khanda-yoga and his other experiments were?

According to Chapter 7 of the Shri Sai Satcharitra, Sai Baba demonstrated extraordinary control over his physical body through various yogic practices. This included Khanda-yoga, a practice where He could disjoin His limbs—separating His hands, feet, and head from His body and then rejoining them as before. The text also mentions other experiments like Dhauti, which is a method for cleansing the stomach, and Poti. These accounts highlight how Baba would wear out His own body for the benefit of others, even bearing the sufferings of His devotees, showcasing his profound spiritual capabilities.