I read somewhere that INFPs/ENFPs (and probably other types too, but specifically those two) are naturally attracted to sadness. They're the deep poets that write of mourning and death - that find the beauty in things most people may not.
I personally find sadness to be an extremely beautiful thing. It is very, very touching. It is one of the only things that can truly move me.
It's a VERY hard thing to explain, and I wish I could explain better, but I really can't put it into words.
I'm sure some of you understand?
Here are some examples of things that really move me,