What's the story about Karnik's encounter with a saint in Nashik?

In Chapter 33, a devotee named Karnik went for Darshan at the Kala Rama temple in Nashik. There, he had an unexpected encounter with the saint Narsing Maharaj. While Karnik was in a circle of devotees, Maharaj suddenly got up, grabbed Karnik's wrist, and demanded, 'Give my Rupee.' Although surprised, Karnik gave the Rupee with great joy, feeling as if Sai Baba himself was accepting the money. The text notes that this was a forceful taking, not something Karnik had been contemplating, which serves to illustrate the importance of acting on a sudden, good impulse without hesitation.