Feast of Pentecost   May 11, commemorates the descent of the Holy Spirit on the Apostles, fifty days after the resurrection of Christ. Pentecost means "fiftieth day" and is considered the birthday of the Christian church.     From the Mass on Pentecost Sunday   Veni, Sancte Spiritus   Come, Thou Holy Spirit, come, And from Thy celestial home Shed a ray of light devine   Come, Thou Father of the poor, Come, Thou source of all our store, Come, within our bosoms shine.   Thou of Conforters the best, Thou the soul's delightful guest, Sweet refreshment here below.   In our labor rest most sweet, Pleasant coolness in the heat, Solace in the midst of woe.   O most blessed Light divine, Shine within these hearts of Thine, And our inmost being fill.   Where Thou art not, man hath nought Nothing good in deed or thought, Nothing free from taint of ill.   Heal our wounds, our strength renew, On our dryness pour Thy dew, Wash the stains of guilt away.   Bend the stubborn heart and will, Melt the frozen, warm the chill, Guide the steps that go astray.   On Thy faithful who adore, And confess Thee evermore, In Thy sevenfold gifts descend.   Give them virtue's sure reward, Give them Thy salvation, Lord, Give them joys that never end.   Amen. Alleluia.