This book is 2 texts, both written in 1963 by Samael Aun Weor, and an Editor's Appendix.
The first is the "Grand Gnostic Manifesto of the 2nd year of Aquarius" which discusses: The Aquarian Era; An Appalling Truth; The Soul; System to Dissolve the 'I'; The Spirit; Sex Yoga; The Buddha; The Christ; The Universal Gnostic Christian Movement.
The second is the "Supreme Message of Christmas 1963-1964" and discusses: The Astral Body; The Hydrogen SI-12; Nourishment of the Astral Body; The Mental Body; The Body of Conscious Willpower; The Four Bodies; The Problem of the Soul; The Four Bodies, the Essence and the Spirit; Crystalization of the Hydrogen SI-12; The Venustic Initiation; The Hypocritical Pharasees.
Este libro es dos textos ("Gran Manifiesto Gnóstico del 2º año de Acuario" y el segundo es el "Mensaje Supremo de Navidad 1963-1964"), ambos escritos en 1963 por Samael Aun Weor, y un Apéndice del Editor.