We're human beings and we're consist of a body (as matter) and a soul (as our innate unique properties).
As body meaning of life is survive and prolong you body in the future (give birth).
As a soul we use our unique properties to serve society and make it better (teacher's teaching, doctor's healing, etc).

As an example we can look at a tree. It's a big organism where we're as a branch serving the whole organisms, give birth to the new branches and live as long as our tree lives.