Joking aside, there is no objective, universally accepted reason for living, no matter how so many religions try to tell you otherwise. With my collecting stamps example I was trying to show that everyone has to find their own meaning and fulfillment. Some never find it, some find several reasons and some don't even bother, that is not to say they are worse off then the ones who keep searching for meaning in everything. Blessed are the ignorant...
Also your meaning of life doesn't even have to be a positive one. I mean it is generally considered to be nicer, but some find meaning making others miserable. Philosophically speaking that can be just as fulfilling as family, or helping people, etc,etc...
But then again, isn't this beauty worth dying for?: