This phrase just popped into my head today. And it is all about attitude. Which, ironically enough totally works with the weather today. It is bright and sunshiney and about 6º, not a warm day by any stretch of the imagination, but it certainly looks good!
As it is with our attitudes, sometimes the 'fake it until you make it' rings true, because if you walk around smiling and acting happy and positive, sooner or later you will feel that way, it is pretty hard to not be positive even if you start out not really feeling that way.