Spoilers for the Village of Hollows arc and manga material through Volume 15. The Abyss being alive is a theory, not a confirmed reveal.
Irumyuui became a village. People lived inside her transformed body. Their desires and what they valued shaped what happened to them there. Eventually, Faputa was born.
Now look at that sequence again. Did Made in Abyss just show us a pocket-sized version of the Abyss itself?
A village should not be able to give birth
The strangest thing about Iruburu isn't merely its inhabitants' appearances. It's that a living person became a place, with other living beings inside it. The village's rules turned value and desire into consequences you could physically feel.
A normal town may have strict property rules. It does not reshape your body according to what you want. Imagine that homeowners' association.
And after all that, the village's story ends with the birth of Faputa. The manga has already shown a chain of events in which life becomes an environment, alters other lives, and produces new life.
What if the whole Abyss is a body?
The main Abyss has its own peculiar rules. You can descend, but returning upward exposes you to the Strains of Ascension. Deep within it, bodies and lives undergo changes that would make no sense in an ordinary cave.
After Iruburu, it's tempting to read the great pit as an enormous organism. Perhaps its force field acts like a membrane. Perhaps its layers function more like organs than geological strata. Perhaps some of its impossible transformations are part of a living process.
That's an interpretation, not a set of facts. Similar-looking events don't prove that they share a mechanism. The Village of Hollows doesn't automatically explain the Curse.
Is the 2,000-year mystery a birth cycle?
The series also contains the puzzle of roughly 2,000-year intervals, including ancient groups of praying skeletons. A living-Abyss theory gives that number a striking image: what if the pit grows, changes, or produces something at the end of a very long cycle?
It's a satisfying question. It is not proof that the Abyss manufactures Relics, gives birth every 2,000 years, or created Reg. Those are additional leaps, not answers already supplied by the story.
The biggest problem with the theory
Iruburu didn't exist forever. It arose from Irumyuui's extraordinary ordeal involving a wish-granting Relic. The great Abyss has a different history. Their resemblance could be thematic rather than biological.
Maybe the village is the Abyss's miniature counterpart. Or maybe it is simply the clearest, cruelest example of what wishes can do inside the Abyss.
To distinguish those readings, we would need a stronger clue: an event showing the Abyss itself turning life or wishes into an environment—not just someone inside it doing so.
The unsettling part
The living-Abyss theory may turn out to be wrong. But Iruburu changes how you look at every descent. Once you've seen a person become an entire village, a giant hole stops looking safely like scenery.
If the Abyss is a body, explorers aren't merely discovering a strange landscape. They're cheerfully announcing new findings from inside something's stomach.
And suddenly the warning about not climbing back out sounds like it might have a very different meaning.
