During the spiritual training here described the student develops his thought-life to such an extent that he is not exposed to dangers which are often thought to be connected with training. This cultivation of thought brings about all the inner experiences that are necessary, but causes them to be so enacted that the soul lives through them without any injurious shocks. Without an adequate development of thought, these experiences may produce a feeling of great uncertainty in the soul. The method here emphasized calls forth experiences in such a way that they may produce all their effect and yet not cause serious shocks. By developing the life of thought the student becomes more of a _spectator_ of the experiences of his inner life, whereas without such thought-development he is in the very midst of the experience and is shaken by all the shocks incidental to it. Systematic training points out certain qualities which the student must acquire by means of exercises, in order to find the way to the higher worlds and especial stress is laid on the following,—control of the soul over its thoughts, its will, and its feelings. The manner in which this control is acquired through exercise has a dual aim. On the one hand, the soul by this practice acquires a firmness, reliance, and balance, which will not forsake it even after the birth of the second ego; and on the other hand, this latter ego is provided with strength and inner fortitude for its journey. What is required is that man’s thinking power shall in all domains conform to facts. In the physical world of the senses, life is the great teacher of the human ego with regard to reality. Were the soul to allow its thoughts to roam aimlessly hither and thither, it would soon be corrected by life, unless it were willing to enter into combat with it; the soul must conform its thoughts to the facts of life. Now, when man leads his thoughts away from the world of the physical senses, he misses the corrective influence of this latter. If his thought is not able to be its own mentor, it will be as unsteady as a will-o’-the-wisp. Consequently, the student’s thought must be exercised in such a way that its course and object are self-determined. Inner firmness and a capacity to concentrate strictly on one object: this is what such thinking must of itself engender. And for this reason the thought exercises should not be concerned with complicated objects or those foreign to life, but should, on the contrary, deal with those that are simple and familiar. Any one who succeeds in fixing his mind, over a period of several months and for a space of at least five minutes a day, on such ordinary objects as a pin or a lead pencil, excluding for the time being all other thoughts not concerned with the object under contemplation, will have accomplished much in the right direction. (A new article may be chosen each day, or the same one adhered to for the space of several days.)