For those who don't understand the film
It's a story.
There's no underlying message that I can detect. No great big metaphors, unless you really want to pull something out of your butt.
It's a story of two young boys in a town of corruption. If I had to pick any theme, it's protecting the things you cherish.
I don't find it particularly "trippy" or plotless, it just doesn't spell everything out for you and shove it in your face. I personally admire films that don't treat their audiences like they're stupid or unable to interpret things on their own.