“This is the day that the Lord has made; let us rejoice and be glad in it.” (Psalm 118:24, ESV) The longer I live, the more I’m convinced that gratitude is a key element in living a happy life. It’s difficult to be grumpy and grateful at the same time. It’s also difficult to be selfish and grateful. Or angry, rude, or thoughtless and grateful. You get the idea. A thankful spirit is the perfect antidote for a lot of our everyday irritations and attitudes. Someone once compared gratitude to a muscle that grows stronger the more we exercise it. If we…