Internal:
A box divided into a brick pattern might suggest an obstacle in your path. Remember it can be scaled with a leg-up or a ladder. Brick walls can suggest a sense of restriction or limitation, or of being figuratively jailed for some imagined or real misdemeanor. There might be unresolved guilt that needs to be addressed.
External:
Bricks are everywhere, especially if you have a brick home or are planning to build one. Even if a brick wall is not part of your present environment, you may well have past experiences, even pleasant ones, associated with walls. Sitting on a garden wall, for instance, or throwing a ball against one.
