Belah'dia and Sil'dih Lore?

[Veloran]

Personal theory here, but I think Belah'dia are the descendants of the Meracydian civilization that spawned Sophia, or at the very least that civilization once had colonies on the mainland of Eorzea that the Belah'dians would later draw parts of their religion and iconography from. At the very least, we know Qarn is supposedly much older than the Belah'dian kingdom that appropriated it, and the similarities between Sophia and Azeyma suggests to me that they're historically related somehow.
Also, I've heard that a symbol seemingly related to Sephirot is present on both the temple and Meracydian ruins found on Azys Lla, so that's another connection right there.

[JeanneOrnitier]

the similarities between Sophia and Azeyma suggests to me that they're historically related somehow.

I'm curious as to what you mean by this?

[Veloran]

According to Astro lore The Balance is represented by Nald and Thal, representing life and death, and Azeyma keeping the equilibrium as warden of the scales. Aside from fitting Sophia to a T, this also draws parallels to the whole of the Warring Triad, with Sephirot being a god of life, Zurvan being a god of death, and Sophia being the equilibrium between the two forces.