The melody to this song is a centuries-old Irish folk tune, named “Slane” for a hill about ten miles from Tara in County Meath. According to legend, at the time of the spring equinox in 433, King Lóegaire had decreed that no fires were to be lit until he had lit the fire on Tara Hill that marked the beginning of the pagan spring festival, and St. Patrick defied the king by lighting the Paschal candle on Slane Hill on Easter Eve.
Be Thou my Vision, O Lord of my heart;
Naught be all else to me, save that Thou art;
Thou my best thought, by day or by night,
Waking or sleeping, Thy presence my light.
Be Thou my Wisdom, be Thou my true Word;
I ever with Thee and Thou with me, Lord;
Thou my great Father, I Thy true son,
Thou in me dwelling and I with Thee one.
Riches I heed not, nor man’s empty praise,
Thou my inheritance, now and always;
Thou and Thou only, first in my heart,
High King of heaven, my treasure Thou art.
High King of heaven, when victory is won,
May I reach heaven’s joys, O bright heaven’s Sun!
Heart of my heart, whatever befall,
Still be my Vision, O Ruler of all. Amen.