There are other meanings to the letters. One of them is secret and revealed only at initiation. Another is stated in the pledge manual and is something I probably could share ... I won't, because I'm not 100% sure if it's ok, but some masterful google fu could probably turn it up. ;)

Well, it's no secret on these boards that I'm a real cynic on ritual, but it's not something I've ever repeated anyway. I do, however, think it is kinda cool to compare/contrast the secrets of the different groups, as the ones I've known are all more alike than different.