Mari is a feminine numen in the form of an elegant and wonderful lady, endowed with a mysterious and fascinating power, which in turn is an idyllic source of inspiration. It is the most important genius of Basque mythology, being a tectonic mythological character lives underground, and comes to the surface by caves and chasms. Most of the time she shows herself in the form of a beautiful woman, personifies the forces of nature, and with her power, gives balance to these. It is the feminine personification of the earth, the queen of Nature and all its components. As a goddess she has the capacity to impose justice, severely punishing men who act with evil, defender of honesty and very severe with injustice. Among its missions is to punish lies, theft, pride, not to comply with the given word, not respect people and arrogance, but rewards the help of others, succor its followers but punishes those who do not believe in her.