(a) Concentrate the attention upon some familiar object--a pencil, for instance. Hold the mind there and consider the pencil to the exclusion of any other object. Consider its size; color; shape; kind of wood. Consider its uses, and purposes; its materials; the process of its manufacture, etc., etc., etc. In short think as many things about the pencil as possible allowing the mind to pursue any associated by-paths, such as a consideration of the graphite of which the "lead" is made; the forest from which came the wood used in making the pencil; the history of pencils, and other implements used for writing, etc. In short exhaust the subject of "Pencils." In considering a subject under concentration, the following plan of synopsis will be found useful. Think of the thing in question from the following view-points: (1) The thing itself. (2) The place from whence it came. (3) Its purpose or use. (4) Its associations. (5) Its probable end. Do not let the apparently trivial nature of the inquiry discourage you, for the simplest form of mental training is useful, and will help to develop your Will and Concentration. It is akin to the process of developing a physical muscle by some simple exercise, and in both cases one loses sight of the unimportance of the exercise itself, in view of the end to be gained. (b) Concentrate the attention upon some part of the body--the hand for instance, and fixing your entire attention upon it, shut off or inhibit all sensation from the other parts of the body. A little practice will enable you to do this. In addition to the mental training, this exercise will stimulate the part of the body concentrated upon, for reasons that will appear in future lessons. Change the parts of the body concentrated upon, and thus give the mind a variety of exercises, and the body the effect of a general stimulation. (c) These exercises may be extended indefinitely upon familiar objects about you. Remember always, that the thing in itself is of no importance, the whole idea being to train the mind to obey the Will, so that when you really wish to use the mental forces upon some important object, you may find them well trained and obedient. Do not be tempted to slight this part of the work because it is "dry" and uninteresting, for it leads up to things that are most interesting, and opens a door to a fascinating subject.