Among the four Vedas, the Atharva Veda is different from the other three Vedas both in style and in the matter which it deals with. It concerns itself with chants, incantations, methods of destroying one's enemies and so on. Tantrik texts which are heavily influenced by this Veda deal with the subject of ten Vidyas or Cultic Goddesses whose worship is beneficial for happiness and prosperity in this world and for liberation from rebirth. The ten Vidyas are classified into mahavidyas or extraordinary Vidyas, Vidyas or ordinary Vidyas and siddha-vidyas or adept vidya which are difficult to master. Among the ordinary Vidyas, the most important is Shodasi Vidya or Sri-Vidya.The Sri Chakra which is the representation of the Sri Vidya is the means by which the Goddess is propiated and worshipped. This book which explains the symbolism behind the Sri Chakra and the textual background for this Tantric cult.