Portraits of dragon slayers are cross-cultural phenomena that appear in a wide range of religious contexts, from the ancient Indian Rigveda to the sacred book of the Maya. The ancient Roman Mithraic cult is the most important predecessor religion of Christianity and, according to the latest research, 2.000 years older. Child-god Mithras slays a dragon, sacrifices himself in the shape of a bull and ascends to heaven with his father Sol (sun). In psychological terms, the story represents the infant’s transition from the nursing mother to the language-dominated world of the father. The self-sacrifice of Jesus is also followed by his ascension to his father’s side. The Mater Dolorosa and forlorn women are left behind.