What is the purpose of life, and the universe in general?
One can argue that evolution makes a species better.
Humans came from monkeys (yeah, yeah, its debatable), so what will come from humans?
Eventually we will evolve into a god-like creature that is all-powerful, all-knowing, and all-loving.
And, when one of these said species gets tired of looking at his/her own universe, they will create another universe.
And that, my fellow thinkers, is where we came from.
The purpose of our universe is to evolve to perfection and thus create another.