Publisher's Note

In these lectures Dr. Unger addressed an audience familiar with the works of Rudolf Steiner. The lectures integrate Dr. Unger's considerable knowledge of modern physics, mathematics, and technology with his studies of Steiner's works and of course his own penetrating insight. The reader unfamiliar with Steiner's works, particularly the basic writings, will find this volume very challenging and may want to go to writings such as AN OUTLINE OF OCCULT SCIENCE, THEOSOPHY, and KNOWLEDGE OF THE HIGHER WORLDS in order to enhance his understanding.