What is nostalgia? It’s remembering when life was good—really good. It’s remembering and longing to go back to better times. Or at least better moments. A snowy Christmas morning. A satisfying movie. A stirring book. A childhood song. The smell of home. C.S. Lewis called those longings “desires for our far-off country,” but warned not to misplace them. He wrote, “These things—the beauty, the memory of our own past—are good images of what we really desire; but if they are mistaken for the thing itself, they turn into dumb idols, breaking the hearts of their worshippers. For they are not the thing itself; they are only the scent of a flower we have not found, the echo of a tune we have not heard, news from a country we have never yet visited.” Those longings are echoes from Eden, our first home. We all yearn for a time before sin, shame, guilt, and fear wrecked our world. Want to know why your heart can get homesick, even while living in a loving home?