I was lookin' around at blogs and there was a question on http://luleidemistafina.blogspot.com/ blog about feeling on tisha b'av. I found to be a very deep question, its not really about crying or the minhag of what people do or dont on Tisha B'av but rather I think it's how well do you associate with the chorban with the loss of ours and the rest of the world, as the Succos korbanos in the Bais Hamikdash shielded the world from grief.
I commented( about the crying on Tisha b'av demand:
First time I cried on tisha b'av was when I was 12. I just finished reading a book on the chorban of WWII and like lots of well written books it really touched me.
Ever been to Israel, nearly every time I get to the kosel I cry, being there makes me feel like a child who misbehaved towards my Father who loves me greatly and, and I, I have forgotten the One who provides, I've been ungrateful for what I get, through no merit of my own.(sigh)
We are (stupid)silly shortsighted humans, But Hashem, please remember that You made us this way.
I'd like to add that if you havent been to the kosel or if you have, but have never felt....the sh'china or something, then you have my pity.
I've heard it from others too there is a overwhelming warm feeling there, like the emotion that comes with a hug after a long absence.
It's a poor description but it's the best I can do, If any knows what I'm talking about then help me out here.