The shape of the square metaphysically represents matter and limitation. The four corners of the square represent the cardinal points (north-south-east-west) and the elemental forces expanding in all directions while providing an anchoring point for intention. The square shape resonates with grounding earth energies.
The square provides a solid foundation for those who are interested in building on an idea, manifesting an intention into a project, and taking appropriate action on implementing a plan. Square provides accountability, balance, and completion of an action.