_Centeotl_ was another great deity, a kind of Mexican Ceres or Demeter. She was the goddess of Agriculture, and very specially of maize. Indeed, her name signifies "maize-goddess," being derived from _centli_ (maize) and _teotl_ (divine being). Sometimes, however, inasmuch as this goddess had a son who bore the same name as herself, Centeotl stands for a male deity. The female deity is often represented with a child in her arms, like a Madonna. This child, who is no other than the maize itself, grows up, becomes an adult god, and is the masculine Centeotl. The feminine Centeotl, moreover, bears many other names, such as _Tonantzin_ (our revered mother), _Cihuatcoatl_ (lady serpent), and very often _Toci_ or _Tocitzin_ (our grandmother). She was sometimes represented in the form of a frog, the symbol of the moistened earth, with a host of mouths or breasts on her body. She had also a daughter, _Xilonen_, the young maize-ear, corresponding to the Persephone or Kore of the Greeks. Her face was painted yellow, the colour of the maize. Her character, at least amongst the Aztecs, had nothing idyllic about it, and we shall have to return presently to the frightful sacrifices which were celebrated in her honour.
Next comes the god of Fire, _Xiuhtecutli_ (the Lord Fire), a very ancient deity, as we see by one of his many surnames, _Huehueteotl_ (the old god). He is represented naked, with his chin blackened, with a head-dress of green feathers, carrying on his back a kind of serpent with yellow feathers, thus combining the different fire colours. And inasmuch as he looked across a disk of gold, called "the looking-plate," we may ask whether his primitive significance was not very closely allied to that of Tezcatlipoca, the shining mirror of the cold season. Sacrifice was offered to him daily. In every house the first libation and the first morsel of bread were consecrated to him. And finally, as an instance of the astounding resemblance that is forced upon our attention between the religious development of the Old World and that of the New, only conceive that in Mexico, as in ancient Iran and other countries of Asia and Europe, the fire in every house must be extinguished on a certain day in every year, and the priest of Xiuhtecutli kindled fire anew by friction before the statue of his god. You are aware that this rite, with which so many customs and superstitions are connected, rests on the idea that Fire is a divine being, of celestial and pure origin, which is shut up in the wood, and which is contaminated in the long run by contact with men and with human affairs. Hence it follows that in order for it to retain its virtues, to continue to act as a purifier and to spread its blessings amongst men, it must be brought down anew, from time to time, from its divine source.[16]