Wait, the last ask confuses me - Are you saying there is only one true nature? As in, if you change, your true nature stays the same?
There are various deviations to your Nature and a lot of wiggle room given how Classpects aren’t too specific in themselves, as well as influence others can have on your own which you can come to emulate to an extent- But yeah, on a very loose sense, everyone has a set Nature.
It’s not as binding as it sounds and it doesn’t mean people can’t change! I mean, look at Vriska and (Vriska), for example, or at Calliope and Alt! Calliope, their personalities diverge a lot and they have different goals in mind and ways to reach them, but at their core they’re still recognizable the same characters. Different circumstances twist and affect you in different ways, but all of these are accounted for in your Ultimate Self, and as such, encompassed by your Classpect.
Aranea tells us! A reality in which, at any point, you could do a 180 and do something completely different would be just as bad as one in which there’s only one set path you can walk on- After all, being able to take any route and make any choice, infinitely branching out, would set you as nothing more than a blank slate, your choices would be absolutely meaningless if you can be anything at any time. And of course being bound to ONLY be one way ever, forever, is extremely reductive and binding. That’s why the concept of the Ultimate Self is important. You are more than you yourself are- You are every choice you could’ve taken. But these choices don’t branch infinitely. They create a reduced microcosm shaped by causation, your environment, and what choices do matter in your life.
You can try to improve and become a good person if you’ve not been good before, but you can’t change a strong conviction. I feel people whose convictions or dreams shift hugely simply weren’t as convicted as they appeared to be in the first place, or were being influenced to chase after something they themselves didn’t really mesh with, but went along with either way.
A good example of this is Dirk, who struggles not only with himself, but with multiple sides of himself he’s haunted by near constantly. He looks up to Dave as an inspiration, and so Knighthood is a big part of him as a character, but within there’s still a Prince, and his conflict is precisely with the bad side of being a Prince. He’s haunted by what he doesn’t want to become, but knows he could become, and that’s exactly what this Classpect Wiggle Room is. You may be completely satisfied with yourself, but you can also have to fight against the bad part of your nature. Everyone has flaws, but these flaws are part of yourself, and to overcome them shows progression, growth. The knowledge that you could’ve gone down a bad route, but didn’t, both possibilities- The Good you, and the Bad you, both are encompassed within your Classpect, and it’s this progression into becoming a better person that one must strive for.
I was more depicting a healthy relationship with your Classpect in the last one, which may have led to the sorta confusion of how I worded things. When YOU look for a Classpect, you should look for what feels best, because I don’t think anyone looks about stuff regarding Classpects at their worst? The full Classpecting thing is a lot more nuanced with the good and bad parts, but yeah. If you’re looking for Classpects, you’re most often going to find it from the base nature of someone who’s genuinely happy.