Nice game. The art is very clever! I like how you made it. The music is also nice. I dont really see the theme implementation (I read the description as it means the past but still), however the glass implementation is very nice here! Its cool that you made it in UE (we wanted to do it as well but then went for Godot). But I was searching for way too long for the code :D Had to check the comments here for hint.
Nice job!
( also, this game is starting up SteamVR on my computer for some reason :D )