His vehicle for conveying truth just at this juncture, we may profitably look at the facts which make the parable so useful. The Greek word literally means “A placing of one thing beside another,” with a view to comparison. Now there is a deep correspondence between this natural world of ours and the spiritual world. “The world of nature and the world of spirit,” as Archbishop Trench says, “proceed from the same hand and grow out of the same root.” The things on earth are copies of the things in