Story of Psyche; Goddess of Human Soul
What Psyche wants more than anything is to be reunited with her husband, Cupid, the god of love and desire. In the end, she's rewarded with his love as well as eternal life.
So what the story may be trying to show is that all human souls long for eternal love and bliss, but it can only be achieved through struggle and hardship. Perhaps it is these very hardships that make us able to recognize bliss when it comes to us.