This episode is the first in a series that delves into what is known as “Siddha” yoga, which is a combination of indigenous Hindu Alchemy, Tantra, and Hatha Yoga. We discuss each of these areas as key sources for the ideological framework, the aims, and techniques of Modern practice. The images that emerge are those of mystical eroticism, in which all aspects of the universe are in an alchemical process of generating a subtle essence whose symbolic representation is that of divine and human sexual fluids. Via interaction with this sexual essence, the Siddha based traditions aim at the creation of an immortal body with the power to transform reality at any level.