What was Shama's unknowing role in the lesson about discipline that Baba taught the narrator in Chapter 18?

In the narrative from Chapter 18, Shama plays a crucial, albeit unintentional, role in Baba's lesson. When the narrator arrives, Shama has just bathed and is preparing for his own worship. He innocently asks the narrator to wait, saying, 'While you have some betel leaf, I will finish the worship ritual. Then we will talk carefully and with satisfaction.' This simple request to wait created the necessary pause in the narrator's errand. It was during this waiting period that the narrator was left alone and casually picked up the Nath Bhagawat, allowing Baba's plan to come to fruition. Shama's daily routine and hospitality provided the perfect, naturalistic setting for the spiritual lesson to unfold.