He calls man a space-eater. Human ambition is to annihilate space. Wars are fought for space, and every step in knowledge is based upon its mastery. What miracles are wireless telegraphy, flying-machines, the Roentgen ray! Astronomy--what ghastly gulfs it shows us in space! Time and space were abolished as sense illusions by the worthy Bishop of Cloyne, George Berkeley; but as we are up to our eyes in quotidian life, which grows over and about us like grass, we cannot shake off the oppression. First thought, and then realised, these marvels are now accepted as matter of fact because mankind has been told the technique of them; as if any explanation can be more than nominal. We shall never know the real nature of the phenomena that crowd in on us from lust to dust. Not even that synthesis of the five senses, the sixth, or sex sense, with its evanescent ecstasy, cuts deeply into the darkness. There may be a seventh sense, a new dimension, intimations of which are setting advanced thinkers on fresh trails. But there is as yet no tangible proof. Philosophers, who, like some singers, bray their brainless convictions to a gaping auditory, ask of us much more credence, and little or no imagination. As that "old mole," working in the ground, gravitation, is defied by aeroplanes, then we should not despair of any hypothesis which permits us a peep through the partly opened door. Plato's cavern and the shadows. Who knows but in this universe there may be a crevice through which filters the light of another life? Emerson, who shed systems yet never organised one, hints at aerial perspectives. A flight through the sky with the sun bathing in the blue jolts one's conception of a rigid finite world. In such perilous altitudes I have enjoyed this experience and felt a liberation of the spirit which has no parallel; not even when listening to Bach or Beethoven or Chopin. Music, indeed, is the nearest approach to psychic freedom.