How did Nanasaheb Nimonkar's devotion to Maharaj evolve, particularly in his final years?

Nanasaheb Nimonkar, an Honorary Magistrate whom Maharaj called "Kaka," initially came for darshan at his uncle's suggestion. Over time, his faith grew immensely. Chapter 0 details that he spent his last three years in constant, dedicated service to Maharaj, leaving only for his daily rituals. Despite being over sixty, he never showed laziness. This devotion culminated in his final days, when he saw Maharaj everywhere. He would say "Sai Baba" to anyone who came near and even told his wife, "Who is in you? Baba is there. You are Baba." His life ended in this state of constant remembrance.