Why does Chapter 11 of the Sai Satcharitra place so much importance on having a Guru with a physical form?

Chapter 11 of the Shri Sai Satcharitra emphasizes the necessity of a physical, or Saguna, Guru for a devotee who also possesses a physical body. The text argues that devotion cannot truly manifest without first meditating on a manifest form. It states, "for the formless, the formless is suitable," but for a worshipper with a body, a Guru in a physical form is required. According to Chapter 11, this meditation on the manifest form is what causes the "bud of the mind" to open and bloom, allowing the devotee to experience the nectar of spiritual realization. Without this, the mind remains closed.