Even though man is unaware of the role he plays in procreation, marriage has great importance for him; this is where he attains adult dignity and receives his share of a piece of the world; through his mother he is bound to the clan, his ancestors, and everything that constitutes his own subsistence; but in all of these secular functions work or marriage he aspires to escape this circle and assert transcendence against immanence, to open up a future different from the past where he is rooted; depending on the types of relations recognized in different societies, the banning of incest takes on different forms, but from primitive times to our days it has remained the same: man wishes to possess that which he is not; he unites himself to what appears to him to be Other than himself.