You know you are going to die , yet you laugh, enjoy, have fun.

Because you know you are not going to die yet, you will die someday in future.  If you knew for sure, that you are going to die tomorrow, will you be able to laugh, enjoy, have fun ? I doubt it.

So what is most important between Life and Death is  TIME. When you know you have enough  time left, you can indulge in a lot of things,  but when it is almost time up, things are different for you.

Now that I have established that TIME is the most precious thing in your life, start thinking of worthwhile ways of spending it.