Good morning!
The Pax Romana was established under the government of Augustus, with a strong military outfit that decreed the end of civil wars, establishing a peaceful environment due to the forces of the arms. There was also a fear of barbaric attacks, which diminished the popular internal uprisings.
Hugs!
Assuming that you're referring to the story the Wallce of time, at first she is afraid because the storm seems very powerful. Then, later in the story, she became interested in the science of the storm.