Thus we learn to know the inner nature of colour and, as I said before, we can foresee a time when an artist's preparation will mean a moral experience in colour of this kind, when the experience preparatory to artistic creation will be much more inward and intuitive than it ever was in past ages. For these are only a few indications I am giving you, and they will be developed much further in the future. They will take hold of men's souls and enliven them with a tremendous sense for artistic creativity, whereas the materialistic culture that has entered our modern age has dried up the soul and made it passive. Souls must be stimulated again by a power from within; they must be taken hold of by the inner forces of things. As a specific example I have taken the colours that flood the world.