Why are poetic biographies preferred over prose for spiritual practices like Parayan and Saptah?

The source text strongly advocates for poetic biographies for spiritual study and recitation. Chapter 0 clarifies that detailed poetic biographies are most suitable for practices like Parayan or Saptah. The primary reason given is that prose is difficult to memorize, whereas poetry is learned quickly, stays in the memory, and can be recalled easily when needed. The text even suggests this is why much of ancient Sanskrit literature is in verse. Furthermore, there is no established tradition of performing Parayans or Saptahs of prose biographies, making poetry the customary and more effective medium for this form of Guru service.