One of my skydiving friends I met like five years ago is apparently the sanest Lumie-Like person ever. I just thought he was weird and enjoyed weird shit (obviously not uncommon in the skydive community). He's otherwise completely sane and chill. But he is totally into it and even has a website and wrote a book on it. Which I read the other day and damn... that shit is out there. But I was entertained so, for what it's worth:
Those From Heaven to Earth Came
The guy's actual name is Puzuzu... I just thought that was a nickname or he was in a metal band or something. Turns out he owns spellsandmagic.com and that is how he makes big money (shockingly).