Chapter 52 mentions focusing on Sai's 'Saguna' form. How does it explain the relationship between the form (Saguna) and the formless (Nirguna) in spiritual practice?

In Chapter 52, a clear relationship between the worship of the form (Saguna) and understanding the formless (Nirguna) is established. The text explicitly states that 'Without entering the Saguna form, the light of the Self cannot be known,' because the Parabrahma, which is without attributes, is 'entirely difficult to understand.' It suggests that by meditating immensely on Sai's physical, or Saguna, form, the devotee's focus allows the subtle nature of the Self to manifest as the attachment to the physical form eventually vanishes. In this way, the tangible form of the Guru serves as the essential gateway to realizing the formless, ultimate reality.