SPOILER
To tell you the truth... you interpreted the story very well! Yes, this story is all about symbolism. Other than death, the moth itself can also symbolize a huge change in life events, or to do real acts, so the person can change their life to a better version.About the unclear aspects, even me as a writer so confused why the story turned to be like this XD maybe I am just a regular person too~
I will plan to drop more lore if I have time, though, maybe devlog, or even a real updates on this game? I can't promise anything though lol, but who knows?
Anyway, thanks for playing my VN~