Hunab Ku known as the mantle of "the water spider" is associated with the Milky Way and the god "Hunab-ku" who is identified as "the only living" and true god and also the greatest of the gods of the people of Yucatan. He had no form because they said that he could not be represented as he was incorporeal. The circular motif evokes a yin and yang symbol as well as a spiral galaxy.