The Freemasons are the big kahunas when it comes to symbolism, aren't they? The only problem is that I don't think most of them understand their own symbols, and tend to get very flighty and flowery when you ask them to explain it.
Luckily, we have the cipher to all esoteric codes in hand -- most, at least -- and you'll find that it unlocks many Masonic mysteries as well. No, I'm not talking about Elizabeth Fraser. She unlocks different kinds of mysteries.
Let's start with Hiram Abif, the so-called founder of those mysteries...
Free(m) to all, including you Cowans!