For instance the idea of intuition, imagination, inspiration.... is related in the principle to an invisible world.... when I call these drawings 'The Secret Block' then I try to stress this part of reality as the most important part because spiritual existence is firstly... I find if we are only confronted with this hard part of the world, this already done part of the world, we are not.... related to the whole idea of reality.... the mission of the art is to make visible the whole reality..

In: 'A. Beuys in the wilderness', 1974 (lecture at the Ulster Museum); as quoted in Joseph Beuys and the Celtic Wor(l)d: A Language of Healing, Victoria Walters, LIT Verlag Münster, 2012, p. 198