42.
The answer is 42.
Haha.
However on a more serious note one might consider there is no meaning to life and it's just meant to be lived but it also depends on religion and/or personal beliefs. You could say the meaning of life is social activities, economics, love, power and all the basics to human civilization or it...
...On the grand scheme of things our lives mean nothing and even our planet's very existence doesn't really mark a significant period on the universe's timeline.