Can you describe the physical interaction between Anna and Mavshibai that led to their argument?

The argument stemmed from their proximity while serving Sai Baba. According to Chapter 24, Anna, who was over fifty and had no teeth, was leaning forward to press Baba's left hand. At the same time, Mavshibai, also of mature age, was energetically massaging Baba's stomach, a process described as "grinding" and "churning." In the joy of her service, she was swaying back and forth, and during one of these motions, her face came very close to Anna's face. Seizing the humorous opportunity, Mavshibai playfully accused him of trying to kiss her, saying, "Have you no shame for your gray hair?" This comment sparked the quarrel.