Quote Originally Posted by lulusgirl
they show the fayth in ffx.it's the little invisible ghost kid.
He's one Fayth. Every Aeon had its own Fayth. They can be seen by revisiting the Chambers of the Fayth near the end of the game. As has been said, they all look like random NPCs. There's also that giant Fayth Cluster on Mt. Gagazet where many people can be seen petrified into the side of the mountain.