In part they proceed from the fact that our own soul-being colors reality. In the ordinary life of the physical sense-world, the danger arising from this source of deception is comparatively small, because here the outer world always obtrudes itself upon the observer in its own sharp outline, no matter how much the observer is inclined to color it according to his wishes and interests. As soon, however, as we enter the imaginative world, the images are changed by such wishes and interests, and we then have actually before us that which we ourselves have formed or, at any rate, helped to form. Now, since through this meeting with the Guardian of the Threshold the occult student becomes aware of everything within him, of that which he can take with him into the psycho-spiritual world, this source of delusion is removed, and the preparation which the occult student undergoes prior to his entering that world is in itself calculated to accustom him to exclude himself—even in matters appertaining to the physical world—when making his observations, thus allowing things and occurrences to speak for themselves. Any one who has sufficiently practiced these preparatory exercises may await this meeting with the Guardian of the Threshold in all tranquillity; by this meeting he will be definitely tested whether he is now really capable of putting aside his own being even when confronting the psycho-spiritual world. In addition to this there is another source of delusion. This becomes apparent when we place the wrong interpretation upon an impression we receive. We may illustrate it by means of a very simple example taken from the world of the physical senses. It is the delusion we may encounter when sitting in a railway carriage; we _think_ the trees are moving in the reverse direction to the train, whereas in fact we ourselves are moving with the train. Although there are many cases in which such illusions occurring in the physical world are more difficult to correct than the simple one we have mentioned, yet it is easy to see that, even within that world, means may be found for getting rid of those delusions if a person of sound judgment brings everything to bear upon the matter which may help to clear it up.