Good things generally equal more good things. Karma, the key, good vibes, and positive thinking all compound on each other. People say it all the time - good energy brings happiness and success.
I agree with all of that! Good = good. But, I wonder how much of it has to do with pure placebo and psychology. More than any additional forces or rules of nature. When you expect good things you generally have a more subconscious sense of avoiding the bad situations.
Moreover, the bad just doesn’t seem so significant. Being excited and happy goes a long way. Capitalize when you have the momentum. Quit wasting time!