I do not like to put spoilers in my movie reviews. My purpose is only to promote the good and in a rare case identify the unworthy. Here are some spoilers.
This movie is like a Beatles or Bob Dylan song, its a prism that forces you to reflect your own light. I have added what came in on my wavelength, but I suggest you see the movie before reading.
The worm is advertising.
The pigs are the big corporations.
Pig headed choices, total burn.
The sounds are the well researched focus group tested mind control advertising has.
Even when the protagonist realize this they are still in love with the system because it is their only sense of immortality, not being able to reproduce on their own. Yes we are in love with our selves and easily manipulated by forces so much more clever and organized than we are.
A real drug that works like the movie.