The universe gave me you or you gave me a new universe?
Well, actually, the only thing that I am sure is that time itself is our biggest waste of time and that sharing our space is the only way of expanding space.
What about energy? Energy and mass are interchangeable, two different forms of the same thing. So, using our mass (matter, body) on good, loving and sharing ways is the best way of creating positive energy for us and everyone around us.
Happiness is pure science :)