Two doves upon the selfsame branch,
Two lilies on a single stem,
Two butterflies upon one flower:—
Oh happy they who look on them.
Who look upon them hand in hand
Flushed in the rosy summer light;
Who look upon them hand in hand
And never give a thought to night.
Christina Georgina Rossetti
http://www.poemhunter.com/poem/song-v-2/