Good question. But I think it is human nature to try to find reasons and meanings of things. From a very early age, even before school starts to program our mind, we ask questions and look for meaning, reasons and answers. It's why small children ask "why?" so many times. Why is the sky blue? Why is the dog licking it's groin? Why did my fish die? Where did it go after it died? Who is that? What's this? Etc...
So we are just geared to ask questions and want to know who, what, when, why, where and how.