There's something ringing around my head about the aging bit. Especifically that they grow OLD.

We intuited from Emet's rose-tinted view that the Ancients kinda reached a point and then they stopped. And were immortal. But aging, especially past a "prime" is a big point of mortality, and that's not even getting into the multiple myths about people who attained immortality without the eternal youth as a required secondary superpower and... it's not pretty. Did Ancients have to deal with osteoporosis? incontinence? Senility? And while Lahabrea isn't an OLD man, he IS grey, he has wrinkles, and he's still "young" enough to be in charge of Pandaemonium and hold a seat at the Convocation. While Venat may be retired, it also claims she's younger than him (and her white hair kinda masks if she were a woman of a certain age)...

Would there be a point in which the Ancients would be more willing to "return to the star" because your body and mind are just too old?