There are six dimensions of the physical world, as seen in the six factors that make up the basic units of measurement—length, comprised of (1) left and (2) right sides; breadth, which is (3) front and (4) back; and depth, which is (5) top and (6) bottom. The numeric value of vav also corresponds to the six directions of the physical universe: (1) north, (2) south, (3) east, (4) west, (5) above/up, and (6) below/down. Since Adam and Eve were created on the sixth day, this also makes the number six the number of mankind.
An interesting view of the world which I suspect is typically Jewish
