Did you know that melancholy used to be one of the seven deadly sins ? Melancholy? Really? Deadly?
I did find an archaic definition that explains the sin aspect. It referred to sullenness and outbreaks of violent anger caused by black bile.
Now that sounds nasty. Black bile. Moral sludge generated by equal measures of sadness, anger, guilt and confusion. Sounds a lot like a crise de foi / foie. A liver crisis of faith. Or a faith crisis of the liver.
The solution for melancholy? Chocolate, I think. Soul salve. Not as good for the liver though. The solution for black bile? Equal measures of rainbows, unicorns, cotton candy and sand castles.