Now I've been told that the Purpose of life is to give glory to God through enjoying him. My first thought was - That's a great thought. But what about if your not a Christian? After alot of thought I realized that whether your a Christian or not your purpose doesn't change. We don't decide our purpose. Our creator does.
Think to a time in your life where you've designed something; anything. You designed it to accomplish something to have a set purpose.