What you do in between these two events is solely yours to choose. Here then gone. That's it, the only thing that life has in common is death. Life is a process. Birth to Death.
All processes have an intrinsic purpose.
A process would not be a process without a purpose. Thus, life must have a purpose. Well, the point of a journey is not to arrive. The point of life is not death, even though death is an inevitable part of life. If the point is not death, not arriving at the end of the journey, it must be somewhere in between, I am going to die someday, what I do now does not matter.