 Primeros Memoriales, a manuscript written by Bernardino de Sahagún before his Florentine Codex, contains a description of Huixtocihuatl paired with an illustration.The Aztecs believed that the essence of a deity could be captured by a human impersonator, or ixiptla, of the god.Primeros Memoriales therefore illustrates and describes the likeness of Huixtocihuatl, who would have embodied the salt god.