Myths seek to explain the origin of humanity. They should not be read literally, as many Evangelical Christians today misread theirs. Mannaz is more direct. There are many aspects of the Self. Some are in polarities.
Every person has both male and female aspects of the personality.
Jung called these the animus and anima. Strengths and weaknesses are another example. We play many roles. Each demands different aspects of our personal makeup in different proportions. An individual's work behavior might not make for a peaceful home if displayed there.