I mean, I can see where being a pagan could teach you some of the essential skills to heighten your abilities more than, say, Christianity could, but that doesn't mean that a Christian can't see ghosts.
The biggest disadvantage to being a Christian is the paradigm. Christians are discouraged from seeking the unknown. We have the Scriptures and our leaders - everyone else is a "devil worshipper" who wants to BAD_WORD us to hell.
Please note I don't believe any of that bias.
There is a universal truth. All religions try to find it. I just think that Pagans are a bit more open-minded (and self-aware) along the path.
Hau'oli Makahiki Hou!