... is what Churchill called depression - by which he didn't mean just feeling down in the dumps. I've been down in the dumps a bit lately myself, but my fundamental shallowness always saves the day for me. Others aren't so lucky: Guidebook to Purgatory.
It is both brave and good of Lars to speak of this. It may be of help to others who suffer from the same. Let us keep them all in our prayers (one such person is always in mine).