Until now, I thought the Latin diagram on Truth's door was some old obscure Alchemy thing, seeing as its written in Latin. Maybe referencing the sins? If you don't know what I'm talking about, it's here http://www.onemanga.com/Full_Metal_Alchemist/107/58/
But it's apparently not, because it's also in the Evangelion theme song: http://www.youtube.com/watch?v=A62011nyXNI
So does anyone recognize this thing? Is it Freudian or what? Better yet, can anyone actually read Latin with any kind of competency?