It is the same in the books following. This poem below is St. Patrick's Rune from A Swiftly Tilting Planet, which is itself an adaptation of The Lorica of St. Patrick. (Of which it is said that God turned St. Patrick and his followers into deer when they were pursued.)
Who comes between you and the powers of darkness? I can't even begin to write about what happened on Friday morning, but I can share my struggle and my DESIRE for faith with you - indeed, maybe that is how we can help each other, and hug our own children tighter: Children lean toward hope and away from cynicism. Let us be childlike, and place this prayer between us and despair.
St. Patrick's Rune
At Tara in this fateful hour
I place all Heaven with its power
And the sun with its brightness,
And the snow with its whiteness,
And the 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!