What is the meaning of our life?

We still living in the earth.People (human) have been in the earth many years ago. We developed our knowledge and made　many things from science or technology. That is very good for human, but what is that mean? I think there is no meaning to make something or develop technology. But we are human which need the meaning. So, if we define the meaning of our life, just we want to enjoy something, I think.