"You know," says Doris, "I don't think I've met a Witch yet who keeps a jar of eyes of newt between the sage and the basil."
"So I don't have to go down to the local swamp to get spell materials or scrounge in the attic or dig up graveyards?"
"Graveyards? Um, no," says Doris, wrinkling her nose. "Magick starts from within. You're simply finding a way to tap into your own Divine nature and the symbols and respresentations you use are like catalysts to affect change. They're not even necessary, but it's often easier to have something physical to focus on."

You
say, "Whoa! Nature, symbols, catalysts... this is sounding waaay
too much like a class in chemistry!"
You
think you'd better hurry and return Uncle Cecil's shinbone back to the
cemetary before Aunt Edna notices the big hole at his gravesite.