Why are poetic biographies preferred over prose for the purpose of Guru service?

Chapter 0 explains that for the practices of study, recitation, Parayan, and Saptah, detailed poetic biographies are considered most suitable. The primary reason is that prose is difficult to memorize, whereas poetry is memorized much more quickly and easily. This ensures that the teachings and stories remain in one's memory and can be recalled when needed. The text points out that this is likely why much of the ancient Sanskrit literature is in verse. Consequently, the study of poetic and detailed Guru biographies is described as a universal custom for performing Guru service, as there is no established tradition for performing Parayans or Saptahs of prose works.