I think we can all relate that life is a great gift but sometimes is one of the worse ones in fact. I get to do whatever I want, spend my nights late updating this dumb website and most importantly; get sometime with my friends if possible. But, it's hard to ingore the thorn within sometimes, its limited. Some people take this as why life is so cherishble and valuable.
People like me accept the fact that death is going to come no matter what we do. Eternal mortallty is never going to be fully possible. That doesn't mean that the fact eats our backs out that we are wasting so much time on what we are doing. It is that thing that we know that will never stop eating at us. no matter what we do.