http://www.linkydinky.com/images/cool.salt.wmv
Ok, I am starting to believe the symbols at the church were some kind of code. Watch this video and you will see how sound affects salt grains to make symbols. WARNING this video contains a note which goes higher and higher and higher until it is so high it is beyond the range of human hearing. So if you do NOT like high pitched notes in your ears, turn the sound off. Anyway, I found this very very neat. It is almost like sound makes symbols which are universal! This is like the language of the universe or God or aliens or whatever you want to believe in..
Some people say that crop circles are created by sound beams, which is why no one ever ever actually sees them being made, and they can be very intricate. I mean, I am starting to believe sound wave beams really can flatten the grain and make these intricate designs like this. If it can do it to salt, surely it can do it to grain stalks. And it happens nearly instantly with the salt, which explains how people say these intricate designs are appearing in feilds where no human would have had time to make this themselves.
I don't know if this is an alien code though. It could be a code that people use to send messages to each other. Or the government or anything. Or someone invented a way to make a sound beam to do this and is having fun with it. Who knows?
But anyway, this is a neat video with the salt. And maybe they'll figure out if the symbols at the church mean anything.