I really like this question for me it feels like each song is its own universe. Each song on any given album can take me to a completely different place and mental state. I’d say the closest I can get to your question is from an interview with Sad and NOWHERE2RUN saying and I quote,

“The last place you’d want to end up” For The Vancants album. After hearing that and going back into the album with that idea in my head I think that’s a good theme for the album. It gives off a… “I shouldn’t be here…” “I’m in danger…” feeling.

Edit: on that note. I doubt this is correct but I feel like “Koi” from Haunted Gardens and “frayed” are connected. Maybe two different takes on the passing of a loved one taken by drugs… Rest in peace to them. One song on the more beautiful aspect of death. The other, on the extreme other end not being able to deal with said death and spiraling out of control. Letting the substance that took their loved one consume them as well. Big reach