Can you describe the different ways devotees, such as Damu Anna and Mavshibai, served Sai Baba physically?

The source texts provide a vivid depiction of the physical service devotees rendered to Sai Baba. Chapter 24 explains that Baba, a lifelong celibate, allowed both men and women to perform these services. For instance, some devotees would press his side, back, or stomach, while others massaged his feet. In the specific incident described, Damu Anna was leaning forward and pressing Baba's left hand. Meanwhile, Mavshibai was performing a very vigorous service by "grinding" and "churning" Baba's stomach with both hands, much like one would churn a pot of buttermilk. Her method was so intense that it made Baba's stomach and back appear flat, yet he remained completely at ease.