Well, for Merrin it does feel like there's - something to reach for, there. Something that feels almost familiar.
Lawful Neutral.
Ascended mortal (????!!!!!! there are implications to mull over there, aren't there! They didn't really process that part at all, earlier– no, Laeirthe, now is still not the time to get all excited about hypothetical Hell-fixing plans that involve doing the same thing, stop that, Merrin is requesting priority on this brain right now).
Secrets. Thriving in hostile environments. Both things of great importance to Merrin's current situation; she doesn't like that part either, especially not the secrets, but that's not really the point, is it. No one wants to be forced into a hostile environment, the question is just...what do you do, when you find yourself in one anyway.
If you're Merrin, apparently, you immediately do agonizing quantities of math in order to, guess what, predict the future without conceptualmagic prophecy. That's a big chunk of what dath ilan Civilization is about, really, predicting the future, in ways built entirely on mortal thinkoomph. Merrin is not very good at it but she was good enough to predict the tidal bore, the first long night, the urgency of distilling water, the slightly lesser urgency of shelter and reducing power consumption, the need for food, which local biomass she would be able to sort of digest. She predicted the future correctly, every time it mattered, and so she survived and (for some definition) thrived in an environment sufficiently hostile that it would have killed a sixth-circle cleric if not for her intervention.
Merrin does? actually? think that's a moderately impressive showcase of specifically some of the things that Erecura is apparently all about??
And all along she's been keeping it a secret that she she semi-accidentally acquired the imaginary voice of an immortal mage from a fictional world, whose immediate proposal for - she's slightly lost track of what the problem in search of a solution was? there are a lot of problems? - was a RESEARCH PROJECT TO DESIGN AND CREATE A COOLER GOD.
Those are the really big ones, but in hindsight there are quite a lot of pieces of her thinking that she kept tucked away from Esta, starting well before she knew why specifically it was ill-advised to trust him like she would his alternate-universe dath ilani version.