Mary said to the angel, "How can this be, since I am a virgin?" The angel said to her, "The Holy Spirit will come upon you and the power of the Most High will overshadow you; therefore the child to be born will be holy, he will be called Son of God. And now your relative Elizabeth in her old age has also conceived a son; and this is the sixth month for her who was said to be barren. For nothing will be impossible with God." Then Mary said, "Here am I, the servant of the Lord; let it be with me according to your word" Then the angel departed from her.
He also is present at the beginning of Jesus ministry, when John the Baptist baptizes him.
Jesus tells the Apostles about the Holy Spirit, calling him the Advocate, or Counselor. At Pentecost, the Apostles actually receive the Holy Spirit (the breath of God). The Holy Spirit appears as tongues of fire. All confusion and fear is removed from the Apostles and they begin to teach and proclaim the word of God.
The Holy Spirit also appears in the Old Testament when he speaks to Elijah. God speaks in the wind and the silence. Often when calling a person to do a specific deed, the Holy Spirit will actually be heard in the silence.
In St. Paul's letter to the Romans Paul wrote the following:
We do not know how to pray as we ought, but that very Spirit intercedes with sighs too deep for words. Romans 8:26
The following prayer to the Holy Spirit was written by St. Augustine.
Prayer to the Holy Spirit
Breathe into me, Holy Spirit, that my thoughts may all be holy. Move in me, Holy Spirit, that my work, too, may be holy. Attract my heart, Holy Spirit, that I may love only what is holy. Strengthen me, Holy Spirit, that I may defend all that is holy. Protect me, Holy Spirit, that I may always be holy.
The images of the Holy Spirit are fire, wind and a dove. The following reflections and Scripture on the Holy Spirit show how God as Holy Spirit is our Guide and Counselor.