The lyrics of both Lagan Love and Gartan Mother's Lullaby were written by Joseph Campbell. There is nothing inconsistent in the lyrics. Nature motifs and mythological references do not equal non-Christian. I love singing the song now in its complete form. Even Mary O'Hara, who recorded this song, notes that she loved the writings of Tolkein so much that she named her home Rivendell... and she was a devout Catholic, at one time a cloistered nun.