1. The Great Unknown: Saint Josemaría devoted this entire homily, given on Pentecost Sunday 1969, to the Holy Spirit.

2. Prayers to the Holy Spirit: Classic prayers to prepare for the feast of Pentecost, including the Veni Sancte Spiritus, the Veni Creator Spiritus, and the Pentecost sequence Come, Holy Spirit. 

3. Saint Josemaría’s Prayer to the Holy Spirit: A personal prayer composed by the founder of Opus Dei, asking the Holy Spirit to enlighten, purify, and strengthen the soul.

5. Consecration to the Holy Spirit: In 1971, Saint Josemaría consecrated Opus Dei to the Holy Spirit so that it might always be a faithful instrument in the service of the Church. This prayer of consecration has been renewed in all Opus Dei centers every year on Pentecost Sunday ever since.

6. Who is the Holy Spirit? On the feast of Pentecost, the Church celebrates the coming of the Holy Spirit upon the Apostles. This article addresses essential questions: Who is the Holy Spirit? What was his descent like? How does he act in the life of a Christian? What are his gifts?

7. Life of Mary (XVIII): The Coming of the Holy Spirit: Our Lady was present in the Upper Room when the Holy Spirit descended upon the Apostles. This reflection draws out the Marian dimension of Pentecost and the 10-day preparation that precedes it.