It doesn't matter if you call it a paradigm shift, or re-framing, changing your mind about something so that you feel better about it is a neat way to improve your outlook and your general approach to life. If you can't do this for yourself, it's great to find someone who can. I had a counselor who could help me flip my perception with just a few words. Now, I do it for others. You'll probably notice the people in your life who appear happy most of the time do this naturally.
Admittedly, it's a small thing... getting out of bed on a rainy day with a smile for my family, but when you learn the habit of finding good in most situations, your whole life feels better.