Why does one live life?

We live because of the happy things. We live because there are people who love us, and people we love back. We live because we want to find out things, and learn, and become able to do things that we would like to do. We live because others want us to, and we want them to live along with us, but have you ever thought how we are even able to live? Here, watch this video to to understand more about that concept! --------