What is the symbolic significance of Baba asking Shama for exactly sixteen rupees Dakshina, as mentioned in the texts?

This question contains a factual inaccuracy regarding the amount of Dakshina requested. Chapter 18 explicitly states that the message sent from Baba was to, "Take fifteen rupees as Dakshina from Shama," not sixteen. The text does not delve into any symbolic meaning behind the number fifteen. The focus of the story is on the interaction itself: Baba's sudden request, Madhavrao's surprise, and his witty reply to offer 'namaskars' instead of money. The narrative highlights the playful and mysterious ways of Baba, rather than providing a numerological explanation for the specific amount of Dakshina.