For the purpose of devotional practices like Parayans or Saptahs, what type of biography is considered most suitable and why?

As explained in the preface found in Chapter 0, detailed poetic biographies are considered the most suitable format for devotional study, recitation, Parayan (a complete reading), or Saptah (a weekly reading). The text explicitly notes that there is no tradition of performing these devotional readings with prose biographies. The primary reason given for this preference is that prose is difficult to memorize, whereas the structure of poetry is more conducive to memorization and regular recitation, which is essential for these spiritual practices.