In Snowpiercer Yona (17 year old girl) predicted many times what's behind the locked doors before they were opened. She predicted that the first compartment was empty. Then she shouted before opening a train compartment and we saw there were assassins with axes. And lastly we saw that she found the 5 year old boy who was being hidden in the train engine room without any sign.
Did she have any kind of supernatural power? The movie didn't explain clearly about her powers. How did she get them?