I have an alt that does "divination" in the sense that a few of the real-life self-proclaimed witches I've known do. She casts stones, rocks, bones, sometimes even entrails (well, nobody I know reads entrails that I know of), and comes up with vague predictions based on them. She never does a specific reading, and never reads for any specific person except herself. Because they're so vague, she believes herself to be right most of the time, and figures she misread the signs when she's wrong. She attributes her "gift" to Dakkru.
I have yet to play this trait out on this character, but if yours wants to meet another "gifted" one, maybe we can arrange something.
I also once encountered a character that had visions and could "read" people - she was just over the line of acceptable RP in my humble opinion; I gave her a glimpse into my character's past and she kind of embellished the story a bit on her own...I simply decided not to roleplay with that character any more; I never even found out who it was OOC. Just be careful not to overstep that line; don't be afraid to ask people to send an OOC tell if they think you might be godmoding a little.