How does Chapter 11 explain the relationship between worshipping a physical Guru and understanding a formless God?

Chapter 11 of the Sai Satcharitra explains that for a worshipper who has a physical body, a Guru in a physical form is essential. The text posits that devotion cannot manifest without meditating on a 'Saguna' or manifest form. This devotion is what allows the 'bud of the mind' to open. The chapter beautifully reconciles this with the concept of a formless God by stating that the manifest ('Sakara') and unmanifest ('Nirakara') are not different, but are one and the same. As Chapter 11 illustrates with an analogy, just as ghee is the same substance whether it is frozen (with form) or melted (formless), the Guru's physical form and the formless Supreme Brahman are ultimately one.