I. "Breath is Life" II. The Master-Key of Creation III. How to Gain the Master-Key IV. How to Use the Master-Key V. The Evolution of the Tattvas VI. The Universality of the Tattvas VII. More About the All-Pervading Tattva: Akasha VIII. The Specific Influence of the Tattvas ... IX. Tattvic Influences: Tejas, the Fire of Life . . X. Happiness Vibrations: Apas and Prithivi . . XI. The Atmospheric Currents of Prana . . XII. The Circulation of Prana in our Bodies . . XIII. The Manifestations of Prana XIV. Planetary Influences upon the Tattvas . . XV. The Activities of the Macrocosm in the Microcosm XVI. More About Macrocosmic Activities in the Microcosm XVII. Mercury and the Activities of the Sushumna XVIII. Vital Centers for Concentration XIX. The Connection of the Zodiac with Vital