How does Chapter 52 explain the relationship between meditating on Sai's physical form (Saguna) and realizing the formless Absolute (Parabrahma)?

Chapter 52 explains that realizing the formless, attributeless Parabrahma is an entirely difficult task for an embodied soul. Therefore, it presents the path of meditating on Sai's physical form (Saguna) as a necessary preliminary step. The chapter teaches that by meditating immensely on Sai's physical form, a devotee can experience the subtle nature of the Self. As this meditation deepens, the Saguna form eventually "vanishes," and the underlying formless reality is revealed. It explicitly states that without first entering the Saguna form, the light of the Self cannot be known, emphasizing the importance of devotion to the Guru's form for spiritual progress.