The wall that holds a door

To build or not to build? This is more than a question, this is a concern. Why would we like a wall? To keep walkers without permits comming in? Other than that? ... mmm... Nothing else. 'Nowelcomers' will come flying, navigating, walking through another border, or running through underground tunnels. What is worse, sometimes 'no caring citizens' are found to be harming the place where they live and the community in which they belong.  Nowadays building a wall seems like walking backwards, trying to travel through time by a legendary dry aqueduct. In a flat world, a world with no boundaries, no edges, walls work limiting our vision. We should make out of this world a better place to live shaking not only our hands but sharing what we are, learning from others and taking everyday a step forward. There are no walls worst than the ones we use to refrain our brains!
So the question about building a wall must be: who is being isolated? with actions that do reflect a distorted way of seeing reality. At least, there is always hope, as for every wall there must be an open crack waiting to be filled with a door. A door that will do it's job to ventilate and as the air magically flows through that open door, beautiful things will happen along as: enlightening, revealing different cultures, wondering new ideas, a two sided learning journey, marvelous traveling, revealing a better us, succeeding and by all means growing all together.