You don’t rationalize someone out of a fear response; you can't because they're subsumed by the emotion. The opposite of fear isn’t to show no fear but to show compassion for their fear. Being understood and sharing the experience is how we will help them elevate out of their emotional response. Often times we have to acknowledge emotions they themselves still haven’t recognized so that we can help them to navigate and process them. How do you know that you're caught in an emotional response?