Can you describe the unique and contrasting ways Anna and Mavshibai were serving Sai Baba during the incident?

As described in Chapter 24, the devotees served Baba in many ways, including pressing his feet, back, and stomach. In this particular scene, Anna, an older man, was serving by leaning forward and slowly pressing Baba's left hand. In sharp contrast, Mavshibai, a widow of mature age, served with extraordinary intensity. The text states she was "grinding" Baba's stomach, twisting with both hands and pressing so vigorously that her breath became uncontrollable. This method was compared to churning a pot of buttermilk, a service born of pure love that appeared unusual to onlookers.