Trust. That's the song you got your tagline from. I recognized that immediately--NIHIL was my introduction to KMFDM. Of course back then XTORT was still in the works. I miss the 90's...
I think the human organism is too convoluted to lend itself readily to any simplistic analogy. I mean, I could say a banana is like footwear because you can put them on your feet and they tend to have an odor inside, but that paints a comically incomplete picture of what a banana is.
For the sake of comedy, and because this is fun, I'll have a go. Here's a hot take. The human brain is like a combination lock with each gate representing a facet of our conscious and unconscious minds. They each rotate at their own rhythm and each time two or more line up, something happens--either we remember something, or learn something, or forget something, or correlate two or more things we already knew which weren't previously correlated; maybe we get over a trauma or finally forgive some past slight. When all of them line up we attain enlightenment, transform into pure energy and sail to the moon on an ethereal sandwich of toasted bread and cheese.
I don't know how many tumblers the mind has, nor how large their openings are, nor if or how to vary them, or their speed, etc. We're kinda complex and didn't come with a manual.
RIP THE SYSTEM!!1!