Explain the metaphorical comparisons used for Sai in Chapter 50 and why they are ultimately considered inadequate.

In Chapter 50, the author attempts to convey Sai's greatness through metaphors but concludes that they are insufficient. Sai is first compared to the sun, which 'destroys the darkness of the world,' but this analogy is dismissed because the sun eventually sets. Next, he is likened to the moon, which is a 'moon to the Chakor-bird of the devotee’s heart,' but this is also deemed unfit because the moon wanes and is not always full. Chapter 50 uses the failure of these comparisons to make a deeper point: Sai is 'forever complete,' unlike these celestial objects with their cyclical imperfections. This illustrates that Sai's true nature as an 'embodiment of consciousness' transcends any limited, worldly comparison.