[He's imagining a flower monster, sort of, but is having a hard time reconciling what he knows "monster" means to this world with one being wretched.
He's glad, at least, that Frisk did not have to endure what he has. That stopping an enemy peacefully was an option at all. If the poor child had that much in common with him, he...well, he wouldn't be able to stand it.]
Re: voice
[He's imagining a flower monster, sort of, but is having a hard time reconciling what he knows "monster" means to this world with one being wretched.
He's glad, at least, that Frisk did not have to endure what he has. That stopping an enemy peacefully was an option at all. If the poor child had that much in common with him, he...well, he wouldn't be able to stand it.]