What is the dual benefit of studying a Guru's biography, like the Shri Sai Satcharita, for both the individual and the wider community?

As detailed in Chapter 0, studying a comprehensive Guru biography provides a significant dual benefit. For the individual, performing Parayans of a work like the Shri Sai Satcharita constitutes a form of personal Guru service. For the community, when many devotees participate in this study, the writer gains the merit of serving God in humanity (Jan-Janardan), and the participating devotees are helped to achieve the purpose of their lives. In this way, the Sadguru accepts service from the entire congregation, strengthening the spiritual fabric of the whole community.