Why does Chapter 11 say it's so important to worship a Guru who has a physical form?

Chapter 11 explains the significance of devotion to a Saguna, or manifest, Guru. It states that as long as a worshipper has a physical body, the Guru must also be in a physical form, as this is the determination of the scriptures. The text emphasizes that devotion cannot truly manifest without meditating on this Saguna form. This meditation is crucial because, as Chapter 11 points out, until loving devotion occurs, the 'bud of the mind does not open,' preventing one from experiencing the full fragrance and nectar of spiritual growth.