What is the core spiritual lesson from the story about Pundalikrao and the coconut mentioned in the text?

The central spiritual lesson from the incident with Pundalikrao's coconut, as detailed in Chapter 51, is the importance of overcoming ego and the illusion of being the 'doer'. Sai Baba used the broken coconut to teach Pundalikrao that clinging to the idea of being the doer leads to distress and pride. The narrative explicitly states that this story's essence is: "the more non-egoistic the state, the more authority one gains in the spiritual path, and one will easily cross the ocean of existence." Thus, the story is a profound lesson on achieving a state of non-doership to find peace.