I think I remember someone saying that the vessels can't actually consume said food, sleep, etc, and that they are meant to die, or else they just keep starving, going insane from sleep deprivation, so maybe if you don't get a mouth, you straight up can't trick your body into thinking it's eating

The last peice moving back.and forth through the coconut, not being able to push out is the cherry on top, this is so good

Peaketh