I'm not certain what you recall from our previous discussions, since we haven't discussed the ruins very much since the exploration took place. Though at the time, there was nothing very tangible to link it to. There still isn't much besides theory, however...

There were specific patterns throughout it, implicating a theme of spirals, amidst the worship chambers. Continuity. Using what we have been told... it's possible that it might not be of a civilization that lived on this land before us, but rather one that came into being whenever these first 'cycles' of people being brought to this world began.

Of course, no evidence of anything but the remains of rituals was all that was really left to be found...