...and the music of crystals.
And, he, his own transparency involved with that of the dream, contained in the dream and containing the dream, he lifted himself in the enormous effort required of him and with a final piercing through of the dream’s border, with a final shattering of every sort of image and every sort of revelation, with a last shattering of memory, the dream grew beyond itself, he growing with it […] and it became the law which caused the crystal to grow, the law of music, stated in the crystal, stated through music, but over and above that, expressing the music of the crystal.
~ Hermann Broch, The Death of Virgil, 1945
What the spiritual eye sees inwardly in the world of thought and mind, it sees outwardly in the world of crystals.
~ Friedrich Froebel