This volume contains two Tantras: the Tantra of Great Bliss and the Tantra of the Natural Intent of the Heart. Both of these Tantras represent a meeting of the Atiyoga tradition and the Mahayoga, and offer us an insight into the interrelationship of these two classes of Tantra as they are brought together. We are gradually introduced to a seed syllable and to mandalas both physical and sonic, elaborately described in colorful detail. Practices are...