Epistle to Diognetus 10
And if you love Him, you will be an imitator of His kindness. And do not wonder that a man may become an imitator of God. He can, if he is willing. For it is not by ruling over his neighbours, or by seeking to hold the supremacy over those that are weaker, or by being rich, and showing violence towards those that are inferior, that happiness is found; nor can any one by these things become an imitator of God. But these things do not at all constitute His majesty. On the contrary he who takes upon himself the burden of his neighbour; he who, in whatsoever respect he may be superior, is ready to benefit another who is deficient; he who, whatsoever things he has received from God, by distributing these to the needy, becomes a god to those who receive [his benefits]: he is an imitator of God. Then thou shalt see, while still on earth, that God in the heavens rules over [the universe]; then thou shall begin to speak the mysteries of God; then shalt thou both love and admire those that suffer punishment because they will not deny God; then shall thou condemn the deceit and error of the world when thou shall know what it is to live truly in heaven,
I do believe this is a formula to "awaken longings for what God will someday bring to pass" as Philip Yancey speaks of in his writings about the Kingdom of God.
Come, Lord Jesus