there are two opposing forces; life and entropy. Life is a force that turns disorder into order... nucleic acids organize into RNA, from genetic material springs life, single-celled organisms -> multicelled organisms, evolution etc. Life propagates, arranging matter in an organized and stable fashion; lifeforms die, everything is recycled... Entropy is an opposing force that seeks stability in a different way... There is an equilibrium between the two.
All matter simply cycles through different forms, energy is mostly constant, although of course the two are interchangeable. In the long run I think the interconversion favors energy... stars burn out, high atomic # elements decay, etc. In the end, all matter is recycled through a "big bang." If gravity pulls matter together, then given enough time, all matter in the universe will collect at one point, hence cyclical "big bangs" that completely recycle all energy and matter back to the starting point.
Higher powers, the thousand religions, and thousands of Gods, were all made up by stupid people too stupid to understand their world.