Based on this:

As can be seen from existing Allagan artifacts (runestones (from 1.0) inscribed with the symbols of the Twelve), Twelve worship existed in the 3rd Astral Era (before eventually losing steam amongst the Allagans as their civilization became increasingly scientifically advanced). When the Allagans first visited Meracydia, they were surprised to find a symbol almost identical to that used for Azeyma, the Warden being prominently featured in various types of architecture. Further research, however, revealed that the Meracydians they encountered did not worship Azeyma, but instead a deity named Sephirot, the Fiend, and that the symbol was being used to mean something similar, but ultimately different.
http://forum.square-enix.com/ffxiv/t...=1#post3572906


I am starting to think that Meracydians (beast tribes and man) believed in a Sun deity who may have been Azeyma but has changed to be something different as time passed on in Meracydia. So I suppose Zurvan could represent a different aspect of Her?

Who knows? Maybe both Sephirot and Sophia were both talk about Azeyma in their lyrics?

Hopefully somebody asks them the question in Fanfest