What are the spiritual benefits, for both the individual and the group, of studying a detailed biography of a Guru like Sai Baba?

As explained in Chapter 0, studying and performing Parayans of a detailed poetic Guru biography offers multi-layered benefits. For the writer, it is a profound form of Guru service. For other devotees who study the work, it helps them achieve the purpose of their lives. Furthermore, when a congregation of devotees engages in this study together, the original writer gains the merit of serving God in humanity and performing public service. This collective engagement fosters a spiritual community and allows the Sadguru to accept service from the writer and the congregation simultaneously.