What is the importance of meditating on Sai's physical form (Saguna) according to this part of the Satcharitra?

Chapter 52 emphasizes the critical role of meditating on Sai's physical, or Saguna, form. It explains that this practice is a necessary step toward understanding the formless divine. The text clarifies that the Parabrahma, which is without attributes, is entirely difficult to grasp directly. Therefore, by first meditating immensely on Sai's physical form, the devotee can begin to perceive the subtle nature of the Self. This process eventually leads to a state where the Saguna form 'vanishes' from the mind, revealing the light of the true Self, which was previously unknowable without this initial devotional focus.