They say a lot of things. For example, they say in North Dakota that you can watch your dog run away for two days. Here in Minnesota, they say there’s no summer–only three months of poor sledding.
They also say that the color yellow represents happiness. There are the obvious reasons, of course, like sunshine and such, but I’d like to suggest a deeper connection. You see, we have no receptors in our eyes for yellow; what we’re actually seeing is a certain ratio of red to green. Our brains do the rest.
Your color yellow and mine might not even be the same.
And so the connection between yellow and happiness is this: they can only come from within.