The Satcharitra mentions Sai Baba's practice of 'Khanda-yoga'. What did this practice involve?

According to Chapter 7 of the Shri Sai Satcharitra, Khanda-yoga was a remarkable and seemingly miraculous practice performed by Sai Baba. It is described as the process of disjointing his own limbs and head from his body and then rejoining them back together as they were before. This extraordinary ability is mentioned alongside other practices like Dhauti (cleansing of the stomach) and Poti. The text frames these incredible feats within the context of his immense love for his devotees, noting how he toiled for others' benefit and even bore their sufferings, wearing out his own body in the process.