Another neat idea would be to tell him nothing of the canon. Make his trouble aspect related to knowing next to nothing about the supernatural world at large. This would suggest a person with a lot of raw talent, but also very ignorant of the going on's in your city, and allow your player to learn about the canon as his character does.
This, basically. Most characters can be played pretty easy, without knowing the world too well. One of my players in my RL campaign never read the books and probably never will. I created a werewolf character for him, who will slowly gain knowledge about the supernatural world, but for now he basically just knows that werewolves exist.
I could see something similar for your character. Since magic is based on your believe, you don't have to actually know about magic. There are "chi healers" in our world, too. Granted, they can't actually do anything, but if you go into the DV and someone with a little bit of latent talent learns from one of those, his own magic could be channeled through this believe system and actually acomplish things, even though he doesn't know the damndest thing about magic.
If you want to stress that aspect a bit more, make it ritual(chi healing), and have him use empathy instead of lore and performance instead of discipline, which to me seem fitting skills for chi healing. Channeling would probably be too fast for something like this. I'd imagine it to be similar to Elaine's Reiki healing spell, right?
