Final answer:
The Chief likely said "We should learn from each other" to the Swedish minister, which reflects a mutual understanding and shared experiences.
Step-by-step explanation:
What the Chief said to the Swedish minister after both had told their stories is not explicitly specified in any of the given excerpts provided. However, based on the context where both the Chief and the Swedish minister find commonalities in their stories, such as believing in an afterlife and realizing the meaning in coincidental scientific discovery, the closest appropriate response would be "We should learn from each other".
This response acknowledges the reflection on shared experiences and the potential for mutual understanding, rather than a stance of superiority or dismissal.