On the western continent this great unity was equally recognized; in Mexico as Teotl, in Peru as Varicocha or the Soul of the Universe, in Central America and Yucatan as Stunah Ku, or God of Gods. The mundane egg was everywhere received as the symbol of the original, passive, unorganized formless nature, and later became associated with other symbols referring to the creative force or vitalizing influence, which was often represented in emblem by a bull. In the Aztec Pantheon all the other gods and goddesses were practically modified impersonations of these two principles. In the simpler mythology of Peru these principles took the form of the Sun, and the Moon his wife. Among the ruins of Uxmal are two long massive walls of stone thirty feet thick, whose inner sides are embellished with sculpture containing fragments of colossal entwined serpents which run the whole length of the walls; in the center of the wall was a great stone ring. Among the annals of the Mexicans the woman whose name old Spanish writers translated "The woman of our Fish" is always represented as accompanied by a great male serpent. This serpent is the Sun-God, the principal deity of the Mexican Pantheon, while the name which they give to the goddess mother of primitive man signifies "Woman of the Serpent." Inseparably connected with the serpent as a phallic emblem are also the pyramids, and, as is well known, pyramids abound in Mexico and Central America. As Humboldt years ago observed pyramids existed through Mexico, in the forests of Papantha at a short distance above sea-level; on the plains of Cholula and of Teotihuacan, and at an elevation which exceeds those of the passes of the Alps. In most widely different nations, in climates most different, man seems to have adopted the same style of construction, the same ornaments, the same customs, and to have placed himself under the government of the same political institutions. Mayer describing one of his trips says, "I constantly saw serpents in the city of Mexico, carved in stone and in the various collections of antiquities." The symbolic feathered serpent was by no means peculiar to Mexico and Yucatan. Squier encountered it in Nicaragua on the summits of volcanic ridges; even among our historic Indian tribes, for example among the Lenni Lenape, they called the rattlesnake "grandfather," and made offerings of tobacco to it. Furthermore in most of the Indian traditions of the Manitou the great serpent figures most conspicuously.