Describe the manner in which Mavshibai served Sai Baba and Damu Anna's reaction to it.

Mavshibai, a devoted follower whom Baba called "Mother," served him in an extraordinary and fearless manner. Chapter 24 illustrates her service as she would press and churn Baba's stomach with both hands, as if grinding a pot of buttermilk. While she was completely absorbed in Sai's name, Baba remained at ease. However, Damu Anna, who was serving nearby, perceived her intense method differently. The text states that her way of pressing produced "pity in (Anna's) heart." This difference in perception of her service, coupled with her subsequent joke, created the conditions for the quarrel that followed between the two elderly devotees.