Sunny stumbled on that particular idea while lamenting how unreasonable the situation he had found himself in was.
No, really… it wasn't enough that he had to fight a minor god. That malevolent deity just had to be an undying one on top of that — a Sacred foe who literally could not be killed, because he was not a living thing to begin with.
Shadow God had taken his death, and therefore, stole away his life as well.
The concept of a living being was a complicated one in the world of the Nightmare Spell. Take Sunny, for example… technically, he was dead. But in the broader sense, he was still a living being. So was Jet, who could be considered one despite being physically and functionally a magically reanimated corpse.
There were all manner of Nightmare Creatures out there, as well — wraiths, ghosts, and specters of all kinds; golems and automatons, walking suits of malevolent armor… and things that could not even be described, let alone understood.
