The problem with building walls throughout life is that they can be built so high that the one building them cannot see over, through, or around these walls.
The builder of the wall becomes lost and self absorbed behind these walls, feeling safe from the world. Very few possess the ability to penetrate these walls and if they do get inside, it is only for a brief moment.
A gate or opening of some kind might have been built in, maybe it is just a crack, but the builder has not found the way out, bound by fear and confusion, exhausted by strife.
