´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. Hencethe composition ´Nekyia´ consists of three parts which should be distinguished in shape and expression: part 1 with its lively rhythms stands for the physical, the material and secular, part 2 (bb 71-154) symbolises the encounter with death, part 3 (´Lux Perpetua´) refers to a state of mellowness in which life and death are balanced and integrated.