The spiral is one of the most mysterious and ancient symbols, combining the shape of a circle with an impulse toward movement. Manifesting in a whirlpool, a nebula far in space, and a double strand of DNA, the spiral speaks of the cyclic nature of life’s development in the universe. The macrocosm of the spiral on this card links with the microcosm of the atom, a symbol of the twentieth century. In this way it points out a connection between eras, the spiral staircase of human history, and the unity of the universal and deeply personal.