The answer is exceedingly simple. Purpose in life is whatever you decide it is. If you don't like existence, kill yourself. To be honest, I don't like being alive, but I'm glad for the experience. It's amazing to be a piece of the universe experiencing itself. I've had enough of it now though. Once I get over my natural instinct for self-preservation and fear of death, I'm outta here. I just gotta get my hands on some supplies to make my exit bag. The government won't let me have a gun.