[@RokkuHoshi] Salt is pretty good for flavoring and keeping food.

If you're talking about a supernatural sense, the answer is not at all.

I've got to insist that all characters must know nothing at all about the alternate reality. It is far simpler for me, as a GM, to teach the characters IC what is happening rather than trying to work around what your character may or may not already know. A religion like Wicca is totally cool -- you could even make up your own religion -- and it might become significant to the plot, but your character will not have more knowledge in what is happening than anyone else. Sorry, hope that's clear!