Based on Chapter 50, what is the nature of Sai Baba and why are conventional comparisons considered inadequate?

According to Chapter 50, Sai Baba is described as the Unmanifest who has taken form, an embodiment of pure consciousness. He is portrayed as desireless yet deeply compassionate towards his faithful devotees. The author, Hemadpant, attempts to describe his greatness but finds common metaphors lacking. For instance, he states that it is not fit to compare Sai to the sun, because the sun eventually sets. Similarly, a comparison to the moon is also inadequate because the moon wanes. In contrast, the chapter concludes that "Sai is forever complete," highlighting his eternal and unchanging nature, which transcends such earthly comparisons.