December 12 (12.12) is the Feast Day of Our Lady of Guadalupe.

On December 9, 1531, Guadalupe first appeared to Juan Diego on Tepeyac Hill and told him that she wanted a church built in her honor on that very hill. The Bishop did not believe Juan Diego and asked for proof. When Juan Diego returned to Our Lady and told her what the bishop said, she asked Juan Diego to hold out his tilma (cloak).
Right there on that cold winter’s day in December she filled his tilma with the roses of summer. When Juan Diego showed the Bishop the roses , they were both astonished to see Our Lady’s image imprinted on the tilma as well. The bishop then built a beautiful church on Tepeyac Hill, one of the most revered places of worship in Mexico.
Images of Our Lady of Guadalupe show her standing in a light portal with stars on her cloak and the Moon under her feet. She is depicted as A Radiant and Shining One beckoning us to us to remember our own radiant and shining divine essence. (For more on Guadalupe check out these links http://www.rimjournal.com/arizyson/guadalup.htm And http://en.wikipedia.org/wiki/Our_Lady_of_Guadalupe)