"Then a woman said, 'Speak to us of Joy and Sorrow'.
And he answered:
Your joy is your sorrow unmasked.
The deeper that sorrow carves into your being, the more joy you can contain.
When you are sorrowful look again into your heart, and you shall see that in truth you are weeping for that which has been your delight."
From: "The Prophet" by Kahlil Gibran