Knowledge of the Higher Worlds and Its Attainment

An Unabridged Edition To Include: How Is Knowledge of the High Worlds Attained? - The Stages of Initiation - Initiation - Some Practical Aspects - The Conditions of Esoteric Training - Some Results of Initiation - The Transformation of Dream Life - The Continuity of Consciousness - The Splitting of the Human Personality during Spiritual Training - The Guardian of the Threshold - Life and Death, The Greater Guardian of the Threshold - Appendix