The pattern creates a complex system of corridors, which bear resemblance to a labyrinth, which is an archetype well-known all around the world for centuries.
It’s meaning is as much complicated as the pattern itself. Typical association with the pre-existing maze-like buildings, which frequently were an element of a defence system, has established them as a symbol of security. Mark of a labyrinth has often found its place on the houses of ancient Greece.