Brick walls are incredible structures
The builder must realize the need for the wall,
then for many days must painstakingly
place mortar between bricks.
They must build with intention.
If not, it is no longer a wall
it will be left to decay in the rain.
However,
once finished it will stand strong against the weather,
impede prying eyes and thieves,
dissuade creatures and man alike,

The nature of the brick wall is this:
It only takes a single person
willing enough to remove that brick,
to break the mortar and push the brick through.
Their motivation
does not matter
so long as they find the reason for it being built.