[This book] explores the subtle techniques of Tantra that enable the seeker to attain the triple mastery of the breath, thought and the natural processes of the body. Tantrics believe that the body is the temple and divinity lies at its heart. In order to arrive at profound awareness, the body needs to be perfectly tuned and working toward a state of perfect fluidity. [It] reveals many of the secret practices intended for this purpose that have been passed down in the major Tantric treatises such as the Vijnanabhariva Tantra and Ch'an master Chinul's treatise on the 'Secrets of Cultivating the Mind', including the important techniques of the ritual sexual observances known as Maithuna.