How does a Sadguru accept service from devotees through literary works?

A Sadguru accepts service from devotees through books in two main ways. The first is when the Guru themselves create monumental works, such as Shri Dnyaneshwari or Shri Dasbodh. The second method, as described in the preface of the Shri Sai Satcharita, is when the Guru inspires devotees to write their biographies. By doing so, the Guru accepts service from both the writer and the wider community of devotees who engage in study and devotional readings, known as Parayans. This act of writing and reading serves the Guru and helps devotees achieve their life's purpose, as mentioned in Chapter 0.