When you look at the primary use or function of a wall, it is glaringly obvious that a wall divides. It separates one from another. Physically, mentally or physiologically – walls can be pretty formidable constructions.
Why are walls built anyway? I mean, why do we take so much trouble to separate things from each other? Could it be to protect things we most care about?
Some of the most dangerous walls are the ones which require no actual raw physical material for their construction, yet they take equally long to construct and are at times impregnable. The building bricks of these intangible walls are hurt, anger, and distrust and maybe sometimes hate as well (depending on the situation.)
You build up these walls hoping to protect what’s been hurt or broken but ultimately what you end up doing is isolating the very thing you were trying to protect in the first place.