A co-worker of mine lent me a CD of remixes of a song called 'Forever' by Bruderschaft... written by a man who lost his father to cancer, it's a very powerful and yet eminently listenable song that I've become rather fond of.
It reminded me also of the relationship between Tidus and Jecht, especially late in the game, the emotions beneath the namecalling and everything. Those are the lyrics visible (barely) behind Tidus... they're here [link]
if you want to read them. As for the black tribal thing? Random design element, and trying to symbolize entrapment.