You think the things you can touch and feel are the things that are real, but they are not. Over time, they all get old and decline. The people, the houses, the rocks and the mountains: one day they will all crumble. This is because they are not as real as the things that last forever. It is another one of the lessons we come to teach.
Kate McGahan, Jack McAfghan: Return from Rainbow Bridge
crumble, decline, forever, material, things, unreal