I refuse to believe that George Washington was a Satan worshipper.
I know what it means. Royal Arch is a stepping stone to Templar Knights. You have to be a Christian to be a Templar. I didn't learn that hand sign until I reached Templar Knight.
I don't care if you trust me or not. I walked away from the lodge because the symbolism was alarming to me. I felt like God was telling me to get away from the lodge. It didn't feel right.