Year’s ago? I asked the same thing in different words here 3 days ago. No problem. Since I worded the question differently, you would not have seen any warning it had just been asked. And all my wordy question details, along with the link to a short video with Dr. Michio Kaku discussing his answer to the question may have skewed the answers I got. I am anxious to see the answers this way of asking the Great Question brings forth.
My own answer is much like Dr. Kaku’s. purpose of life. I love to work, I need to. I would go crazy without some form of meaningful work. I need to love. And I need to do what I can to leave a better world for those who come after me.