The term "sacred geometry" is used by archaeologists, anthropologists, and geometricians to encompass the religious, philosohical, and spiritual beliefs that have sprung up around geometry in various cultures during the course of human history. It is a catch-all term covering Pythagorean geometry and neo-Platonic gometry, as well as the perceived relationships between organic curves and logarithmic curves. Plato's "ideal forms" were one example of this conception.
Other examples of sacred geometry include the Kabbalic Tree of Life, the Buddhist Mandala, Catholic Labyrinth - a feature of some cathedrals, the Chinese Feng Shui, the Golden Mean or Phi