What does Chapter 52 teach about the relationship between meditating on Sai's physical form (Saguna) and realizing the formless Self (Nirguna)?

Chapter 52 presents a profound teaching on the path from the form to the formless. It states that by meditating immensely on Sai's physical form (Saguna), the subtle nature of the true Self will eventually manifest as the focus on the form vanishes. The chapter emphasizes that this is a necessary progression, clarifying that without first entering the Saguna form, the light of the Self cannot be known. This is because, as Chapter 52 explains, the Parabrahma, which is without attributes (Nirguna), is entirely difficult to grasp directly. Therefore, meditating on Sai's form is presented as the essential method through which He mysteriously leads His faithful devotees toward the supreme goal of realizing the formless Self.