Actually you can mix beliefs. You can work with many areas of magic and relate to religions that practice it. Christians could use magic if they believed in it. There is even a coven here for Christian Wiccans.
Re: mixing magic or not?
By: Ragnorok. Jan 10, 2010
Post # 4
Hello, Juju. My existence proves you wrong.
Ambreg, I don't do much with runes or sigils, really, so I can't answer that specifically although if I were to do so I would most likely agree with Raven. On the topic of magick, that is basically the manipulation of energy and I mix energies all the time. So long as you don't overwork yourself, which is a risk in any type of practice no matter how basic, you should be fine. I also mix beliefs, being a Christian-Taoist-Buddhist who also practices Japanese Shinto.