Dominum et Vivificantem §54

⁵⁴ "God is spirit, and those who worship him must worship in spirit and truth." These words were spoken by Jesus in another conversation, the one with the Samaritan woman. The great Jubilee to be celebrated at the end of this Millennium and at the beginning of the next ought to constitute a powerful call to all those who "worship God in spirit and truth." It should be for everyone a special occasion for meditating on the mystery of the Triune God, who in himself is wholly transcendent with regard to the world, especially the visible world. For he is absolute Spirit, "God is spirit" ; and also, in such a marvelous way, he is not only close to this world but present in it, and in a sense immanent, penetrating it and giving it life from within. This is especially true in relation to man: God is present in the intimacy of man's being, in his mind, conscience and heart: an ontological and psychological reality, in considering which St. Augustine said of God that he was "closer than my inmost being." These words help us to understand better the words of Jesus to the Samaritan woman: "God is spirit." Only the Spirit can be "closer than my spiritual experience. Only the spirit can be so permanent in man and in the world, while remaining inviolable and immutable in his absolute transcendence. But in Jesus Christ the divine presence in the world and in man has been made manifest in a new way and in visible form. In him "the grace of God has appeared indeed." The love of God the Father, as a gift, infinite grace, source of life, has been made visible in Christ, and in his humanity that love has become "part" of the universe, the human family and history. This appearing of grace in human history, through Jesus Christ, has been accomplished through the power of the Holy Spirit, who is the source of all God's salvific activity in the world: he, the "hidden God," who as love and gift "fills the universe." The Church's entire life, as will appear in the great Jubilee, means going to meet the invisible God, the hidden God: a meeting with the Spirit "who gives life."