Experiences of this kind will come to one when one no longer just looks at the things and phenomena in the world, or just listens to them, but experiences them from within. These are the kind of experiences mankind must have, particularly through colour and sound, but also through form; in fact, altogether through the realm of art, in order to get away from the purely external relationship to things and their functioning — which is characteristic of the materialistic age — and to penetrate into the inner secrets at the heart of things.