“Tonacacihuatl’s themes are ghosts, death and hope. Her symbols are flowers and all symbols of death. In Mexico this Goddess’s name means ‘Our Lady of Flesh’. Tonacacihuatl is a creatrix who gives life to all things and to whom the spirits of children return at death.
Part of a weeklong festival for the dead, Angelitos Day is specifically focused on departed children. If there is a child who had passed over and who was special to you somehow, make cakes or foods that feature symbols of death and leave them in a special spot. This invites Tonacacihuatl to release that child’s spirit for the day and welcomes the souls of the departed to the festival.
Put out the child’s picture in a place of honor with a candle nearby to help light their way. Cook and eat the young one’s favorite foods, leave a lamp lit near your threshold, and strew flowers (especially marigolds or dandelions) on the walkway to guide the child’s spirit back home.
According to tradition, eating hen or chicken today ensures a visitation by ghosts, because then the bird can’t crow loudly and frighten away the spirits! In all due caution, however, you might want to keep a little salt, violet petals, sage, or ginseng handy to banish any unwanted ghostly guests.”
(Patricia Telesco, “365 Goddess: a daily guide to the magic and inspiration of the goddess”.)
Tonacacihuatl (pronounced toe-na-ka-SEE-wah-tl) is primaeval female principle, or Goddess of creation in Aztec mythology. By some accounts, She was the mother of Camaxtli, Huitzilopochtli, Quetzalcoatl and Tezcatlipoca. She combined with Her husband, Tonacatecuhtli, created life on earth and, in some accounts, is identified with Omecihuatl. This Goddess lived in the highest of the thirteen Aztec heavens.
She and Her husband have the task of transferring the souls of infants from Heaven to the womb of the mother.
* The first picture is actually of another Aztec Goddess, Mictecacihuatl, but I really wanted to use it as I believe She is an appropriate Goddess for this time of year. “In Aztec mythology, Mictecacihuatl (pronounced ‘Meek-teka-see-wahdl’ or ‘Meek-teka-kee-wadl’) is Queen of Mictlan, the underworld, ruling over the afterlife with Mictlantecuhtli, another deity who is designated as Her husband.
Her role is to keep watch over the bones of the dead. She presided over the ancient festivals of the dead, which evolved from Aztec traditions into the modern Day of the Dead after synthesis with Spanish cultural traditions. She is said now to preside over the contemporary festival as well. Mictecacihuatl is known as the Lady of the Dead, since it is believed that She was born, then sacrificed as an infant. Mictecacihuatl was represented with a defleshed body and with jaw agape to swallow the stars during the day.” 
Holmer, Rick. The Aztec Book of Destiny.
Quipoloa, J. Amoxtli.org, “The Aztec Universe“.
Ruiz de Alarcón, Hernando. Treatise on the Heathen Superstitions that Today Live Among the Indians Native to This New Spain.
Wikipedia, “Santa Muerte“.