A prayer

I need your excellent services again:
I have a prayer, taken from a movie "the others", I could not find and interested to know if it is a known prayer or just an improvised one.
"Blessed be, at light of day,
Jesus, to whom now I pray.
Blessed be the Virgin pure
Whom I greet with faith so sure.
Jesus, Mary, Spotless Rose,
Keep us till this day doth close.

Thank you very much
miri

I searched for this with not much hope of finding it as an existing prayer, simply because I'd not heard of the term "spotless rose" ever being used in a religious setting. However, although I couldn't find the words as quoted above, after a little Googling, I did manage to establish that the use of the rose as an image of the Virgin Mary has been around since mediaeval times, and that an English composer, Herbert Howell, composed a Christmas carol in 1919 called "A spotless rose", allegedly adapting the words from an old prayer. Sadly I couldn't find the lyrics to this either. Maybe someone else will be able to be more definitive.