Here’s an extract to whet you:
‘So hiraeth is a protest. If it must be called homesickness, it’s a sickness come on—in Welsh ailments come onto you, as if hopping aboard ship—because home isn’t the place it should have been. It’s an unattainable longing for a place, a person, a figure, even a national history that may never have actually existed. To feel hiraeth is to feel a deep incompleteness and recognize it as familiar.
Mae hiraeth arna amdanot ti. There’s a homesickness on me for you. Or, if we’re mincing words, I miss you. That’s fair, too. But the deeper, national hiraeth is something you don’t have to go away to experience. You can feel it at home in Wales. In fact, that’s where you feel it most.
I’m American, but I have a hiraeth on me for Wales.