In the City of God, Augustine eloquently speaks about "two cities" that are divided by their two loves. In God's city, there are angels and humans united in their love of God. In the earthly city, there are demons and humans united in their devotion to their own wills. For Augustine, the city of God on earth is the Church, but in this life it is a church which intermingles citizens of the two cities. It is a church on pilgrimage which longs to be fully united and secure with the heavenly city of God. But even now, in the Eucharist and in the miraculous intercession of the saints, the Church can achieve a foretaste of the unity it will experience in heaven.