Charmed, Anyone?

Okay, so if you haven’t heard of the tv show Charmed, it circulates around 3 sister witches, the ‘Charmed Ones’ while they’re fighting demons and saving innocents and such. They have a book of spells and magical creatures and demons and how to banish them, called the Book of Shadows. 

So, here’s the thing. I come from a Catholic family, and I believe in the Catholic beliefs as well, for the most part. I wanted to write my own Book of Shadows, but I’m kind of unsure about the whole thing. I wanted to make one of magical creatures and such but I’m just really unsure of this whole thing, like I said before. What do you guys think?