Chapter 15 uses an analogy about an ocean. What is the meaning behind this comparison?

In Chapter 15, the author uses the analogy of an ocean to address the listeners. The author humbly requests the listeners, whom he compares to the vast ocean, to accept his stories. Just as the ocean accepts all rivers, whether they carry the pure water of the Ganges or the muddy stream of a village, he asks the listeners to accept his narrative without judgment. This metaphor, found in Chapter 15, emphasizes humility and the author's desire to immerse himself in the grace of the audience, hoping they will not turn away or rebuke him for his efforts to share these sacred stories.