It meant grace is way provided for each individual to return to their rightful inheritance.
What a picture it gives us tonight of the church in this last days. You see what man can do and then you see what God does. What man does is failing, and will fail, has failed, and always will fail. But what God does is eternal and must forever remain. Nothing can ever take it away. God give it; it's His free gift, and by sovereign foresight saw it and placed it, and there's nothing can ever move it. It's there eternally. And at jubilee was God's manner of expressing grace to His people for restoring or be brought back to their rightful position.