"Knowledge of faith is possible only in the Holy Spirit: to be in touch with Christ, we must first have been touched by the Holy Spirit. He comes to meet us and kindle faith in us." (CCC, 683)
"Come, Holy Spirit!" Yes, in any discernment of God's call, we need to call on the Holy Spirit to come to fill and inspire us. Do we think to call on the Holy Spirit? Pentecost reminds us to do this not just on one feast during the year . . . but every day.
Read Pope Benedict XVI's homily for the Feast of Pentecost 2012
Listen to Cardinal Dolan's homily for Pentecost 2011