Describe the conversation that happened on Guru Purnima regarding the author's future after his retirement.

As detailed in Chapter 3, in the year 1916, following the author's completion of government service, he visited Shirdi on Guru Purnima. During this visit, a devotee named Anna Chinchonikar, who had great concern for the author, pleaded with Sai Baba on his behalf. Anna requested that Baba find the author another job, expressing worry that his pension alone would not be sufficient for his growing household. Baba replied that the author should now perform His service, assuring Anna that doing so would bring happiness to the household and that his plates would never be empty for the rest of his life.