Can you explain the role of authors and devotees in creating and using spiritual biographies to foster a community, using the Shri Sai Satcharita as an example?

A Sadguru accepts service from devotees through books, often by having his biographies written by them. As mentioned in chapter 0, the late devotee Shri Govind Raghunath, also known as Annasaheb Dabholkar, wrote the sweet and inspirational biography of Shri Sai Baba titled the Shri Sai Satcharita. This work was published over six years in the Shri Sai Leela magazine. By writing such a detailed biography, the author performs Guru service. The community of devotees then continues this service by studying and performing Parayans of the work. This collective study allows the congregation to achieve their life's purpose and builds a strong spiritual community around the Guru's teachings.