What are some of the metaphors used in Chapter 12 to describe the power and role of a saint?

Chapter 12 employs powerful metaphors to illustrate the profound influence of a saint. Saints are described as 'the Agastya (who drank the ocean) for the ocean of worldly existence,' a metaphor signifying their ability to help devotees overcome the vast and overwhelming challenges of life. Furthermore, they are called 'the sun for the darkness of ignorance,' which highlights their role as spiritual guides who dispel confusion and bring enlightenment. The chapter also compares Sai's form to the sky, which 'expands and fills all places,' suggesting His omnipresence and boundless nature, which is experienced by the virtuous and fortunate.