New Mexico's distinctive insignia is the Zia Sun Symbol, which originated with the Indians of Zia Pueblo in ancient times. Its design reflects their tribal philosophy, with its wealth of pantheistic spiritualism teaching the basic harmony of all things in the universe. Four is the sacred number of Zia, and the figure is composed of a circle from which four points radiate. These points made up of four straight lines of varying length personify the number most often used by the Giver of all good gifts. To the Zia Indian, the sacred number is embodied in the earth, with its four directions; in the year, with its four seasons; in the day, with the sunrise, noon, evening, and night; in life, with its four divisions - childhood, youth, manhood, and old age. Everything is bound together in a circle of life and love, without beginning, without end. The Zia believe that in this great brotherhood of all things, man has four sacred obligations: he must develop a strong body, a clear mind, a pure spirit, and a devotion to the welfare of his people.