This book is an attempt to explore various aspects of the enneagram, the symbol that G. I. Gurdjieff introduced to the modern world, and which he stated represented a complete description of the laws governing the universe. Because of the importance he attached to it, it has long intrigued followers of his teaching, and others, yet the understanding of its meanings remains very incomplete. In particular, how it relates to modern mathematical and scientific descriptions of the laws governing the universe has largely been unexplored. This book tries to find connections between these two approaches to the truth, while also recognizing and exploring the differences between knowledge based on symbols and that based on scientific theories and mathematical formulae.