If God wanted to reach us, how would He do it? He might speak directly—unless we were deaf. He might paint pictures—unless we were blind. He might write a book—unless we couldn’t read. Or He could send a note.
But what kind of stationery would He use? Stone costs a fortune to mail; it scratches the furniture and renders many languages poorly. Surely He’d choose something better, something that received ink without smear, transported easily, and conveyed every nuance of His intent.