WE HEAR so much these days about the importance of reaching the subconscious mind that it is very easy for one to assume that there is no other important factor in demonstration, yet there are two other factors equally, if not more important, i.e., arousing the interest of and gaining a response from the subconscious mind. No perfect demonstration can be made without each of these three factors receiving the proper consideration. Reaching the subconscious mind is merely the preliminary process of demonstration, — like touching the keys of a piano is but the preliminary steps to producing music. To gain a response from the subconscious mind is as necessary in demonstrating material things as it is to awaken a response of tone from the keys of a piano in order to produce a demonstration of music. However, in order to gain a response from the subconscious mind, its interest must be awakened for the determination of the subconscious mind lies at its point of interest, hence, the more interest awakened, the greater and quicker the response.