What is the spiritual purpose and benefit of writing and studying a detailed Guru biography?

As explained in Chapter 0, the act of engaging with a detailed poetic Guru biography serves a profound spiritual purpose for both the creator and the reader. For the author, composing the biography is a direct form of Guru service. For the devotees who study the text and perform Parayans, they are able to achieve the purpose of their lives. Furthermore, the writer gains the additional merit of serving God in humanity (Jan-Janardan) and performing public service, as their work facilitates the spiritual growth of others. This creates a beneficial relationship where the Sadguru receives service and the devotees receive guidance.