From the perspective of a Sadguru, what forms of service are accepted from devotees through books, and how does this create a following?

According to the insights provided in Chapter 0, a Sadguru accepts two main types of service from devotees through literary works. The first is when the Guru creates great works themselves, such as the Shri Dnyaneshwari. The second, which is key to community building, is when the Sadguru has their biographies written by their devotees. The Guru then accepts service in the form of dedicated study and Parayans of these biographies, performed by both the writer and the wider congregation of devotees. This shared practice of studying the Guru's life creates a common spiritual foundation and a connected following.