that's a loaded question, open ended. but that may be what you are hoping for, i assume you ask so you can begin to make sense of it all, see what sounds right to you.
my thoughts are that energy permeates the universe, linking us all to eachother, everything, the stars, oblivion. Thought, emotion, any expression of self shifts the universal energies, causes a ripple going outward forever, until it returns to you.
it brings to mind one of my personal axioms;
Make no distinction for all is all, everything is everything.
not everythings needs to, or can be figured out into plain and simple sense, but it often will... if only for a time, so we can learn and grow. And then we will find other sense to hold onto, hopscotching into infinity.