General purpose of this lecture is to present on Christmas Tradition in Mexico. Their main celebration is called La Posada. This is a procession of the re-enactment of the search for shelter by Mary and Joseph, before the birth of Jesus. Santa is not predominant, but the bright red suit is represented in the traditional flower of the season, the poinsettia. The belief is that a young boy, on his way to see the nativity scene gathered green branches to give as a gift. He was laughed at as he walked. Upon placing the branches near the manger, bright red poinsettia flowers started to bloom.