III. What is Mysticism?

Now when this mystical descent into the soul occurs, even if only in the mediaeval sense, the process is as follows. The mystic has in front of him the external world, with its realms of light and colour and all the other impressions it makes on his senses, and he works on all this with his intellect. But he remains in thrall to the external world and cannot penetrate through its appearances to their source. His soul retains conceptual images of the outer world, and above all it retains all its experiences, whether as pleasure or pain, sympathy or antipathy, from the impressions it receives. A human being's ego, with his interests and his entire inner life, always directs him towards the outer world and the impressions the latter makes upon him. When, therefore, a mystic first attempts to turn away from the outer world, he has to reckon with everything that the outer world has engendered in his soul from morning till evening. So at first his inner life appears to him as a repetition, a reflected image, of outer life.