"The legend of the broken heart"
"Long time ago, there was a heart that belonged to two people, a man and a woman.
The woman wanted the heart just for her, and the man wanted it just for him;
while they were fighting over it, the heart broke in two parts.
Since that moment, every person that is born in this world, gets only a half of a heart,
and has to look for the other half in the person he/she will love for the rest of her/his life.