We live in this imperfect, sinful world, encountering frustrations, setbacks, unexpected turn of events ... constantly, and it's easy to get stressed out. The realistic outlook is to realize that such happenings will not go away and it's how we deal with them that matters. To me, to remain cool is to not let anything bother you, for life is dealing with a whole series of unfinished businesses until the day you die. How to remain cool? Know that all things that happen to you are allowed by God for a purpose, so there are no accidents. See it this way and you'll see the good that comes out of the experience each time. Let the Lord take up your burden; you are simply following his will, being detached yourself. This is what total abandonment is all about ~ letting God be in charge of all things, for nothing can happen without his knowledge.