Your life purpose changes as you mature..
At 0-12, I never think of what the purpose of my life is. Just
eat/sleep/play/study.
At 13-16, the purpose of my life is to study hard because parents
and teachers say must study hard.
At 17-18, the purpose of my life is to find out all about girls,
and the targets keep coming/going.
At 19-21, the purpose of my life is to survive NS, and to ORD in
one piece.
At 22-26, the purpose of my life is to study hard, find a good
girl, kiss her, get married, find a good job.
At 27-now, the purpose of my life is to work to pay bills,
occasionally go on holidays, have good sex with my wife, crave for
the finer things of life, raise good kids, think of how to improve
my life and others through AA, and perhaps make a little difference
here and there... Sometimes I ponder about the problems our society
faces, and I reckon the search is never-ending, as long as you make
a difference in the lives of your loved ones, and others you come
across.
Hope that is a good reference point..