Earth

Why are we here on earth? What are we meant to do here on earth? Here lately I have wonder this. I have not come up with the answer yet. I have asked a lot of doctors this answer and they couldn't even give me the answer. I have heard that god put us here for a purpose, but what was the purpose. There are some many things that we are doing to earth that some people say are wrong, but are they. I mean we learn something new about earth everyday, but still the questions are not answered. Are we really meant to be born here live our lives and then die. Its like thier's somebody watching us through an hour glass like we are a small planet inside a hour glass where scientist study us above. We could be like mice. We study mice all the time. Maybe there is a lot of somethings studying us to see how we live and react.