Why does Chapter 11 argue that a Guru in a physical form is essential for a spiritual seeker?

Chapter 11 presents a strong case for the necessity of a physical Guru. It states that as long as the worshipper has a physical form, the Guru must also be in a physical form, calling this the 'determination of the scriptures.' The chapter highlights the practical benefits, explaining that a manifest Guru provides a form that can be seen, whose feet one can bow to, and with whom one can exchange words of love and perform worship with offerings like sandalwood. Without meditating on this Saguna form, the text argues, loving devotion never truly manifests, and the 'bud of the mind does not open,' preventing the experience of spiritual fragrance and nectar.