From the Catechism of the Catholic Church: 692 "Holy Spirit" is the proper name of the one whom we adore and glorify with the Father and the Son. the Church has received this name from the Lord and professes it in the Baptism of her new children. The term "Spirit" translates the Hebrew word ruah, which, in its primary sense, means breath, air, wind. Jesus indeed uses the sensory image of the wind to suggest to Nicodemus the transcendent newness of him who is personally God's breath, the divine Spirit.17 On the other hand, "Spirit" and "Holy" are divine attributes common to the three divine persons. By joining the two terms, Scripture, liturgy, and theological language designate the inexpressible person of the Holy Spirit, without any possible equivocation with other uses of the terms "spirit" and "holy."
Titles of the Holy Spirit 692 When he proclaims and promises the coming of the Holy Spirit, Jesus calls him the "Paraclete," literally, "he who is called to one's side," advocatus.18 "Paraclete" is commonly translated by "consoler," and Jesus is the first consoler.19 The Lord also called the Holy Spirit "the Spirit of truth."20
The Holy Spirit is present in the events in the life of the people of Israel as revealed in the Old Testament and we can clearly see God's glorious plan of salvation being gradually revealed. Read more about the Holy Spirit in salvation history. The promises made to Israel about the coming Messiah and the outpouring of the Spirit of God is fulfilled in the New Testament. Read about the Spirit of Christ and the Fullness of time.
From the Catechism of the Catholic Church: "The Church, a communion living in the faith of the apostles which she transmits, is the place where we know the Holy Spirit: - in the Scriptures he inspired; - in the Tradition, to which the Church Fathers are always timely witnesses; - in the Church's Magisterium, which he assists; - in the sacramental liturgy, through its words and symbols, in which the Holy Spirit puts us into communion with Christ; - in prayer, wherein he intercedes for us; - in the charisms and ministries by which the Church is built up; - in the signs of apostolic and missionary life; - in the witness of saints through whom he manifests his holiness and continues the work of salvation." (CCC688) Since the Holy Spirit is active and present in the Sacraments, here are seven videos sharing a few rich moments about some aspect of the Sacraments.
We are sent to bring the message of Christ, the Good News, to the world. The Holy Spirit is sent to remind us all that Jesus has taught by his words, actions, and prayers. Pope Benedict XVI says this:
"Dear friends, being evangelizers is not a privilege but a commitment that comes from faith. To the question the Lord addresses to Christians: “Whom shall I send and who will go for us?”, answer with the same courage and the same trust as the Prophet: “Here am I! Send me” (Is 6:8). I ask you to let yourselves be formed by God’s grace and to respond in docility to the action of the Spirit of the Risen One. Be signs of hope, able to look to the future with the certainty that comes from the Lord Jesus, who conquered death and gave us eternal life. Communicate the joy of faith to all with the enthusiasm that comes from being driven by the Holy Spirit, because he makes all things new (cf. Rev 21:5), trusting in the promise that Jesus made to the Church: “and lo, I am with you always, to the close of the age” (Mt 28:20)." (Pope Benedict XVI, Meeting with Church Leaders in the New Evangelization, October 15, 2011)