Why does Chapter 11 stress the importance of having a Guru with a physical form?

Chapter 11 of the Sai Satcharitra provides a detailed explanation for the importance of a manifest, or Saguna, Guru. It argues that as long as the devotee or worshipper has a physical body, the Guru must also be in a physical form. The text states this is a determination of the scriptures, suggesting that 'for the formless, the formless is suitable.' Furthermore, the chapter explains that true devotion cannot manifest without meditating on a Saguna form. This devotion is crucial because, until loving devotion occurs, the 'bud of the mind does not open,' suggesting that spiritual growth is inaccessible without first connecting to a manifest Guru.