Why is the format of a spiritual biography—prose versus poetry—considered important for devotional practice?

The format is considered highly significant for its role in devotional study and recitation. Chapter 0 explains that for the purposes of regular study, Parayans (hundreds of readings), or Saptahs (weekly recitations) of a Sadguru's biography, detailed poetic works are most suitable. The primary reason given is practical: prose is difficult to memorize. Furthermore, the text notes that there is no established tradition for performing these intensive devotional readings with prose biographies. Therefore, poetry is the preferred medium as it better facilitates the memorization and recitation central to this form of spiritual service.