Edit: I can understand it being cause and effect. Everything anyone does affects the universe and the world in some way. Like Causal Determination, the western equivalent.
That is more or less, the dictionary definition. But it's odd to think that someone who does awful things doesn't pay for it. If there's an afterlife or reincarnation, and they're re-born as some shit eating fly over and over for 4,000 years, it would make more sense. But that's not anything anyone can prove.