Did anybody here play "Beyond: Two Souls"? It's okay if you didn't. It's not recommended.
But for some context, the 'Beyond' is basically the afterlife, and the US military is conducting experiments to reach into the afterlife (for reasons literally never explained).
One of the scientists loses his wife and daughter in a car accident, and when the main character reveals she can communicate with them (that is, their souls persist and are watching over him), he spirals into a madness that culminates in trying to breach the Beyond and effectively merge the living world and the Beyond. This is bad, obviously (the souls of the dead aren't the only things over there) but he gives NO SHITS, he just wants to see his family again.
At the climax of the game he's succeeded in creating a localized distortion and runs into the Beyond, screaming for his family to come. Your character has to stop him, either by rationalizing with him or killing him. Rationalizing with him reveals that his family is so scared of what he's become that they're staying away from him and he will never be able to find them if he keeps trying to end the world. Now recognizing the evil he's done, he can't live with himself and the monster his family sees him as and shoots himself.
Then he immediately manifests right next to where he was and his wife and daughter come running in out of nowhere to embrace him and the whole dead family flies off into the real afterlife.
At the time, this was a huge point of contention, as it was basically saying that not only was he instantly forgiven for nearly ending the world, but committing suicide was the RIGHT THING TO DO and in doing that he was INSTANTLY rewarded with being reunited with his family. Due to the overall themes of the game, it further implied that if he'd just fuckin' killed himself right after he heard about the car accident, he'd have been united with them immediately. By extension, anybody else experiencing this level of grief after loss would ALSO be justified in killing themselves.
It romanticized suicide.
I bring this up because that's the exact vibe I'm getting off Lily's explanation. "She's taking control of her destiny!" "She's just meeting Aliana for a new adventure!" "It's romantic, it's happy!"
No, Lily.
You're romanticizing suicide.