As promised, the poem from Say What? I'm putting the (correctly spelled) Gaelic version first, then the English. Only the first verse is used in the story. If you want the full text, it can be found here.
Its title is "Righinn Nam Buadh" or "Queen of Grace"
"Is min a has,
Is fin a cas,
Is caomh a cruth,
Is caoin a guth,
Is binn a cainn,
Is grinn a meinn,
Is blath sealladh a sul,
Is tlath meaghail a gnuis,
?S a brollach graidh-gheal a snamh ?n a com
Mar chra-fhaoileag air bharr nan tonn."
"Smooth her hand,
Fair her foot,
Graceful her form,
Winsome her voice,
Gentle her speech,
Stately her mien,
Warm the look of her eye,
Mild the expression of her face,
While her lovely white breast heaves on her bosom
Like the black-headed sea-gull on the gently heaving wave."