A compilation of simple, effective exercises given by Omraam Mikhaël Aïvanhov in the course of his lectures, in answer to the need expressed by those who seek to make progress in their spiritual life. All these various methods are based on that initiatic knowledge whose first concern is the coming of the "New heaven and the new earth" mentioned in Revelation, that is a new mentality and a new behaviour for humanity. Table of contents: 1. Prayers - 2. A Daily Programme - 3. Nutrition - 4. Actions - 5. Overcoming the Evil in Us - 6. Methods of Purification - 7. Human Relations - 8. Man's Relations with Nature - 9. The Sun and the Stars - 10. Mental Work - 11. Spiritual Galvanoplasty - 12. The Solar Plexus - 13. The Hara Centre - 14. Methods for Working with Light - 15. The Aura - 16. The Body of Glory - 17. Formulas and Prayers. Biographie de l'auteur The Bulgarian philosopher, teacher and spiritual Master, Omraam Mikhaël Aïvanhov (1900-1986), moved to France in 1937. His work deals with the many aspects of initiatic science, but says, "Through my teaching, I want to give you some fundamental knowledge about human beings: how they are constructed, their relationship with nature, the exchanges they must make with others and with the universe so they can drink from the springs of divine life.'"