Her rosy mouth paled; the fair colour, which was her ornament, died out of her skin; her bright eyes grew dim like night after day.
Another comparison is:
Like the siren's song, drawing a bark to the reef as by a magnet, so the sweet young queen attracted many hearts.
Love is a usurious plant, whose sun never goes down; a romance sweetens the mood as May dew sweetens the blood.
Constant friendship is one which takes the pleasure with the pain, the thorn with the rose. The last comparisons shew more thought, and still more is seen in the beginning of the poem, Riwalin and Blancheflur, which has a charming description of Spring.
Now the festival was agreed upon and arranged
For the four flowering weeks
When sweet May attracts, till he flies off again.
At Tinkapol upon a green plain
High up on a wonderful meadow with spring colour