Three points represent the first shape with a measurable surface. An added point to this creates depth or a third dimension. According to Schneider, a tetrad or three dimensional triangle, “manifests itself in nature with greatest exactness at the borderline between nonliving and living forms.” If three
represents life itself then perhaps four can represent what is man-made: tables, chairs, desks, walls, floors, ceilings, monitors, picture frames, books. What is square seems solid or durable. Linguistically, one squares up to another person to prepare for a fight. We talk of “square meals” meaning solid, no nonsense eating. If we hit something squarely, we have probably done some injury. If we say someone is a “square” we mean they haven’t changed with the times, they’re somehow behind, unchanging in the face of revolution. If we’re “fair and square” we’re just and have treated others equally, if we have to go “back to square one” we probably did not have our “feet planted squarely on the ground” in the first place.
The Greeks noticed (or were the first who took credit for noticing) that four is formed by both the multiplication and the addition of two together. On earth, where the four traditional winds blow across the four corners of the globe, we have four cardinal directions. Two equinoxes and two solstices mark out our four seasons. In the Ojibwa tradition, there are four sacred herbs (tobacco, sage, sweet grass and cedar), four sacred foods (sweet meat, wild rice, corn and strawberries) and four kinds of plant beings (flowers, grasses, trees and vegetables). There are four elements in the ancient tradition: fire, air, water and earth. Many other groups have four components. The Medieval Society had Monks, Knights, Burghers and Peasants. The Hindu caste system has Brahmins (Priests), Kshatriya (Military), Vaisya (Merchants) and Shudra (labourers). The rivers of paradise were made from honey, milk, wine or water. In Genesis, Adam’s dominion were the creeping things, birds of the air, fishes of the sea and beasts of the field. It would seem things on earth have a way of naturally grouping into fours.
Astrologically, a square is formed when a planet is at a right angle or ninety degrees to another. A square is usually viewed as a challenge, a problem to be managed. Robert Pelletier writes that next to the conjunction, the square is the most powerful of aspects between planets. However, in terms of stimulating human reaction, it is the square that has the most dynamic influence, surpassing even that of the conjunction. As Pelletier asserts, the square aspect has the elements of both fire and water: two incongruous elements that cannot exist simultaneously unless both adapt in some way. Used judiciously however, says Pelletier, and the results can be constructive. Pelletier goes on to assert that the square aspect presents a test for the native that builds character and with each challenge, the native becomes more adept at finding a suitable solution.
 Schneider, Michael S., A Beginner’s Guide to Constructing the Universe, Harper Perennial, 1995, p. 59
 Pelletier, Planets in Aspect, Whitford Press, 1974, p.125
 Ibid, p. 61