how to handle emotional pain

I have been contemplating the handling of emotional pain for the past few days. I’ve had the opportunity to spend time with some people that are completely immersed in the roller coaster ride of out-of-control feelings, and it brought to my awareness how inept many of us are at dealing with pain. I witnessed mood changes that appeared without seeming cause, unpredictable reactions to small events and projection of “made up experiences” that caused someone to completely shut down.