As the sun may send to each planet a different vibration or current of wireless electricity, and each planet will receive only such current as it attracts and to which it is attuned; so the message of Deity to the souls of men will only reach and affect those souls which are attuned to receive them. This in the vast realms of nature is the law of electric or mutual attraction, and in the invisible realms of spirit the same universal law applies. This great principle of mutual attraction, receptivity and mutual adjustment governs everywhere in the universal realms of nature and truth. Rev. David J. Burrell, in his sermon on "Wireless Messages of God," sets forth some strong scientific reasons why the natural man cannot discern spiritual things. Under this universal law of mutual adjustment he says: "If you strike a tuning fork keyed to middle C it will awaken a response in another fork, provided the latter is keyed to the same pitch, but not otherwise." And he applies it to men who respond to spiritual influences and those who are spiritual non-conductors. This is the basic fact in wireless telegraphy. At Cape Cod there is a transmitting station consisting of four steel towers with a bunch of wires suspended from the top and meeting at a common point like an inverted cone. If the power be applied to the apex of this cone the wires begin to tremble; and the current, oscillating at a rate say of nine hundred thousand vibrations per second, creates a series of corresponding vibrations in the ether, just as a stone cast into a lake sends out concentric circles. This ether wave or message speeds outward with incalculable rapidity in search of its receiver; and it will cross the ocean to find it. Now, there is such a receiver at Poldhu, in Cornwall, where the wires are precisely attuned to the transmitter at Cape Cod; that is, their vibrations are the same, say nine hundred thousand per second; so that the message sent from Cape Cod meets no response until it finds its sympathetic station at Poldhu, and this attracts and welcomes it. Marconi's system of wireless telegraphy is not an invention, but a discovery of a natural law or process which has been going on continuously through all the realms of space since time began. The sun as the great source and center of energy in our solar system is constantly sending out messages of light and life to his family of planets. It is a scientific fact clearly proven that a ray of light is an electric wireless message from the sun to the earth, and it could not be received unless the earth attracted it, and was attuned to it. For here the same law prevails between sun and earth that no message can be received except by some object which is sympathetically attuned to it.