I must confess that, although I had read Dr. Baraduc's book, "Les Vibrations Humaines," I approached the instrument in a very sceptical frame of mind; but I was soon convinced of my error. At first, holding a mental attitude of entire relaxation, I found that the left-hand needle was attracted through twenty degrees, while the right-hand needle, the one affected by the out-going current, was repelled through ten degrees. After allowing the instrument to return to its normal equilibrium I again approached it with the purpose of seeing whether a change of mental attitude would in the least modify the flow of current. This time I assumed the strongest mental attitude I could with the intention of sending out a flow through the right hand, and the result as compared with the previous one was remarkable. The left-hand needle was now attracted only through ten degrees, while the right-hand one was deflected through something over thirty, thus clearly indicating the influence of the mental faculties in modifying the action of the current. I may mention that the experiment was made in the presence of two medical men who noted the movement of the needles. I will not here stop to discuss the question of what the actual constitution of this current of vital energy may be--it is sufficient for our present purpose that it is there, and the experiment I have described brings us face to face with the fact of a correspondence between our own mental attitude and the invisible forces of nature. Even if we say that this current is some form of electricity, and that the variation of its action is determined by changes in the polarization of the atoms of the body, then this change of polarity is the result of mental action; so that the quickening or retarding of the cosmic current is equally the result of the mental attitude whether we suppose our mental force to act directly upon the current itself or indirectly by inducing changes in the molecular structure of the body. Whichever hypothesis we adopt the conclusion is the same, namely, that the mind has power to open or close the door to invisible forces in such a way that the result of the mental action becomes apparent on the material plane.