My point was that the game designers came up with the Dalamud storyline a long time after this asset was included in the game. Tanaka's vision of FFXIV didn't lead to it being destroyed by the moon's descent. If this was part of the original game before Yoshida took the lead, then it's impossible to attribute this symbol's origins to the sealing ritual that created Dalamud, because that's something Yoshida imagined, not Tanaka. Thus, it has to have another significance: I wouldn't look much further than "represents the Twelve, because this is the office of the Path of the Twelve's head missus"