Why does Chapter 11 of the Sai Satcharitra emphasize the need for a Guru with a physical form?

Chapter 11 explains the importance of a Guru with a physical form, known as a Saguna Guru, by stating a scriptural principle: as long as the worshipper has a physical body, the Guru must also be in a physical form. The text argues that devotion cannot truly manifest without meditating on this manifest (Saguna) form. This process is crucial because, as Chapter 11 describes, loving devotion is what allows the "bud of the mind" to open and bloom, eventually revealing its fragrance and nectar. Therefore, for embodied beings, the path to the formless begins with devotion to the formed.