Chapter 52 mentions meditating on Sai's physical form. How does this help in understanding the formless 'Parabrahma'?

Chapter 52 presents a nuanced approach to understanding the divine, explaining the relationship between the form (Saguna) and the formless (Nirguna). It states that the 'Parabrahma,' which is without attributes, is entirely difficult to understand directly. Therefore, the text advises meditating immensely on Sai's physical form, the Saguna. The chapter suggests that without first entering the Saguna form, the light of the Self cannot be known. It teaches that as one's meditation deepens and the Saguna form vanishes from the mind, the subtle nature of the Self will manifest. In this way, the worship of Sai's form acts as a crucial and accessible gateway to realizing the formless, attributeless reality.