How does Chapter 52 describe the relationship between worshipping Sai's form (Saguna) and realizing the formless Self?

Chapter 52 explains that the worship of the Saguna, or Sai's physical form, is a crucial step toward understanding the formless Absolute (Parabrahma). The chapter states that without first entering the Saguna form, the light of the Self cannot be known because the attributeless Parabrahma is entirely difficult to grasp directly. According to Chapter 52, by meditating immensely on Sai's physical form, the devotee's focus allows the subtle nature of the Self to manifest as the attachment to the physical form (Saguna) eventually vanishes. Sai used His form to lead devotees mysteriously toward this supreme goal of liberation.