The idea that resilience can be learned also implies that resilience can be spread through social groups -- if you spend more time around resilient people who view potentially traumatic events in a more positive light, it may lead you to do the same.

I certainly found this to be true after hurricane katrina; talking to people who had been through other large-scale disasters helped me re-frame the events as a learning experience, and I've subsequently found myself more resilient in the face of other (unrelated) negative events in my life.