It's not that putting positive energy out into the world reaps good things. One who focuses on the positive has an optimistic outlook and it's this filter that blinds a person from the negative. There is also the flip side to that, in which negative begets negative.

Me, I'm the kind of person who notices the shit storm before it comes and the bright shining sun that comes out afterward. But I like it best when it's only dark at the corners.