It is reasonable to believe with modern science and the teachings of Eastern and Western philosophies, that, beyond all matter, even beyond the gaseous state, there exists a root-substance, a Mother-Nature, a Pater-Aether, or Akasha, as the Hindu philosophers term it, from which, as a primordial substance, all matter is produced.-from Amen, the Key of the UniverseNever let it be said that Leonard Bosman thought small. In this concise pamphlet, he reveals the very "Fundamental Principles of the Universe," from the nature of God to the feminine force that underlies eternity to the "word of power"-amen-that accesses both. First published around 1890, this is a lost classic of theosophy, the philosophical discipline immensely popular at the turn of the 20th century that sought to find the elemental beliefs that connect all religions. It will intrigue all those who seek spiritual truth and understanding.British theosophist LEONARD BOSMAN (1879-ca. 1940) also wrote Fate, Free Will and Providence; The Meaning and Philosophy of Numbers; and (with Anita Orchard) H. P. Blavatsky: The Light-Bringer.