12th. Keely's researches have taught him that this one fountain-head is none other than the omnipotent and all-pervading Will-Force of the Almighty, which creates, upholds, guides, and governs the universe. "The whole world-process," says Von Hartmann, "in its context is only a logical process; but in its existence it is a continued act of will." Lilly says, "This is what physical law means. Reason and will are inseparably united in the universe as they are in idea. If we will anything, it is for some reason. In contemplating the structure of the universe, we cannot resist the conclusion that the whole is founded upon a distinct idea." Keely holds to the harmony of this "distinct idea" throughout creation, and he demonstrates by vibratory machinery that all forces are indestructible, immaterial, homogeneous entities, having their origin and unity in one great intelligent personal will-force. Were it not for this will-force eternally flowing into all created forms, the entire universe would disappear. As the workman employs his instrument to accomplish his designs, so Omnipotence may be said, in all reverence, to regulate His systems of worlds through and by the vibratory ether which He has created to serve His purpose. Well did Hertz reason when he wrote, "Soon the question set by modern physics will be, 'Are not all things due to conditions of ether?'" He had never heard of the toiler on this side of the Atlantic, when, after his own discovery, in 1888, that ether was imprisoned and used in every electro-magnetic engine, without this fact having been even so much as suspected by a single scientist, he wrote, in the Revue Scientifique, "We have gained a greater height than ever, and we possess a solid basis which will facilitate the ascent, in the research of new truths. The road which is open to us is not too steep, and the next resting-point does not appear inaccessible. Moreover, the crowds of researchers are full of ardour. We must therefore welcome with confidence all the efforts that are being made in this direction."