At Tara in this fateful hourIt's apparently originally an ancient Celtic prayer attributed to St. Patrick, made most famous by Madeleine L'Engle in "A Swiftly Tilting Planet" (with a bit of expansion).
I place all Heaven with its power,
And the sun with its brightness,
And the snow with its whiteness,
And fire with all the strength it hath,
And the lightning with its rapid wrath,
And the winds with their swiftness along their path,
And the sea with its deepness,
And the rocks with their steepness,
And the earth with its starkness,
All these I place, by God’s almighty help and grace
Between myself and the powers of darkness.
All these I place...