Mary's role at Pentecost echoes the Annunciation

Dom Gueranger writes that the Church is not only born from the advent of the Third Person, but from Mary also

The parallels between Mary’s roles at the Annunciation and Pentecost might at first not be altogether apparent, but on closer inspection, the relationship between the two becomes increasingly evident. 

At the Annunciation, Mary, by the grace of God and through the action of the Holy Spirit, conceives by the Holy Spirit to give birth to Christ – God and m…