How does Chapter 52 explain the relationship between the Saguna (form) and the path to realizing the formless Parabrahma?

Chapter 52 delves into the philosophical link between form and the formless. It posits that by intensely meditating on Sai's physical form (Saguna), the subtle nature of the Self will manifest as the perception of the form vanishes. The chapter clarifies that one cannot know the light of the Self without first engaging with the Saguna form, because the Parabrahma, which is without attributes, is otherwise entirely difficult to comprehend. It is mentioned that Sai showed His own feet, a physical form, and through the power of love, liberated devotees while they were still in their bodies, guiding them toward the supreme goal.