'Nekyia' is one of the world's basic principles in the mythology of antiquity: each striving after higher values, each spiritualization and each attempt at perfection presupposes the passage through Hades. Each mountain is juxtaposed by the bottom of a valley. Light for its existence also needs darkness, as heaven needs hell. 'Nekyia' is the archetype of all religions. Orpheaus had to descend into Hades in order to gain life for Euridice. Christ had to die to bear witness of life eternal. Hence ...