Lirian knew why it would be a bad idea to let Ella reincarnate, with the compulsion he placed on her she would, simply hate everything, there would be no joy in her life.
She'd feel no happiness from anything, she be unable to experience any emotion other than hate, even acting on her hateful thoughts would bring her no release or pleasure.
He look at the little wisp of his daughter, with a pained expression, he knew of the only way to break the compulsion, but even for Katerina it was practically impossible.
He understood what she was doing to break the curse based on how small the wisp was.
Katerina was keeping the core of Ella's soul and chipping pieces of it and placing it in vessels with extreme potential.
The first step was to get the being who had Ella's soul fragment attached to them to become a god of the same grade as the god of emotion, who was a first-grade god.