What you look at the wall?

Many time we really look at the wall in a different way and we look in such a way that we'll cross it, and that is the fact. When you are looking at the wall, most of the time you are not looking at the wall, you are looking at the time either spreaded in past or in future that which can cross the wall and create a state of flexibility over which you try to connect the cause and event, might be a question or might be a mystery, some people call it dream or some call it imagination but it works. Walls are not merely walls, only their bricks and cement stop us crossing the space, but reast all is a flexible surface of time where you can slide your question. Now the question is what is rest all? and the next question is why walls?