By its silence of a wall reveals many truths. I have spent much of my life in different cities where walls were never smooth and free. These walls are so different, so majestic. The walls above are so proud, so pure, touches of spirituality mingled with sensuality. Indeed, perfect angles don't really exist in nature.  Sometimes, I wonder, wouldn't human bodies move more easily in spheres than in cubes ? Maybe yes, we both start our first moving in our mother's worm.