Well purpose of life seems to create some fruitful stuffs so that next generation could use it. However everyone is crawling towards his death.
i think life's purpose is to make things what God wants for you. Doing God's will is one of the best thing that you can do so that your life will become meaningful. Its good to hear if you can create or make a mark that will never forget about you. Also if you can leave a good thing that may help your next generation.