Can you explain the spiritual significance of Baba asking for Dakshina, using the experience of Kaka Mahajani's friend?

The story of Kaka Mahajani's friend, detailed in Chapter 35, provides profound insight into the purpose of Dakshina. The friend was initially a doubter, yet Baba did not ask him for an offering, which made the friend feel restless. When he finally asked Baba if he should give, Baba revealed the underlying principle: "In your mind, there was no intent to give; Therefore, I did not ask you." This demonstrates that Baba's request for Dakshina was not a mere demand for money but a spiritual instrument. He only initiated the exchange with those who possessed a willingness to give, using the act to facilitate a change of heart and help the devotee surrender their ego and doubts.