My son competes in the Highland Games and a young Irish dancer sang Suil a Ruin at one of them, accompanied by a harp.

I downloaded the song from Limewire -- Artist is Riverdance and album is Lord of the Dance. I must say that the young Irish dancer sings it as well -- my son thought maybe better.

I have wondered what language this is and the meaning of the words that aren't in English? Thanks.