I not think that they were failed copies of the minds of Far Zenith, they are copies of how they really are.

Am I the only one who actually feels bad for Tilda? Sure, she was insane, but with good reason. The love of her life died without her being able to do anything about it, and has been regretting it for a thousand years

Oh, wait. So the sky is coming down to meet Gaia? Perhaps this "nemesis" will instead be more of a Ouranos? And the two will give birth to a new race of gods? Something like that?