Why do we give gifts to loved ones? Because we care that they’re happy, and our gifts make them happy. Pretty straightforward, right?
I used to think so. But then I noticed a caveat—it’s not how happy a loved one is that matters, but how happy we make them. If all we really care about is their happiness, why is it so much more heartwarming to watch a friend unwrap a present when it’s given by us and not somebody else? If our friend is equally happy, shouldn’t we feel equally good?