Final answer:
The exposition of "Saved by a Seal" likely involves themes of salvation and protection, echoing the narratives of Christ and Christian figures, suggesting a story that parallels biblical salvation with a contemporary character's experiences.
Step-by-step explanation:
The exposition of "Saved by a Seal" narratively sets up the thematic framework, contextual background, and introduces characters crucial to understanding the unfolding story. We can glean from the provided passages that the thematic focus revolves around salvation and protection, with historical and spiritual references to Christ and Christian martyrs like San Vitalis, Thecla, and allusions to the Samothracian Mysteries. Through these examples, we infer the story parallels between biblical and real-life salvation, encapsulated in the protagonist's journey—perhaps signifying a modern character's experience with divine providence or miraculous escape.