What are the different forms of service a Sadguru accepts through books, and how can this understanding help build a stronger devotee community?

Understanding the forms of service a Sadguru accepts through books is foundational for building a community. Chapter 0 outlines two primary types of this service. The first is when a Sadguru creates great works themselves. The second, more relevant for building a community around a saint like Sai Baba, is when the Sadguru has their biographies written through devotees. The community then performs service by studying and conducting Parayans of these works, such as the Shri Sai Satcharita. This act of collective study is considered a service to the Guru and a public service, uniting devotees in a shared purpose.