Vamachara is a Tantric practice which does not literally mean the "left hand worship" but which the woman (Vama) enters the laya Sadhana. It is used to describe particular heterodox Tantric practices. Vama Devi is worshipped in Vamachara. During the Vamachara Sadhana, one"s energy leaves the Visuddha Chakra, goes up to the Command Centers and never comes downward. Without passing through the lower Chakras it is very difficult to arrive at these centers.
Acharas in Tantra
There are two forms of acharas in Tantra - the Dakshinachara that includes the first four achara and Vamachara, including the last three acharas. It is said that the men are born into Dakshinachara and are received by the initiation into Vamachara.
Vija is the adversity and it is adverse to "Pravritti" which is governed in varying degree with the preceding achara. The path of entry is called "Nivritti". In Vamachara it is advised to directly destroy the Pravritti and to cultivate the path of Nivritti. The Pravritti is destroyed at this phase of Sadhana in such a way that passions are disconnected. Tantra does not involve lower physical desires like eating, drinking and sexual intercourse as the daily ritual. The Sadhaka must cut off all the eight bonds from the pashu.
Vamachara Tradition
The Vamachara traditions are based on worshipping the dreadful aspects of the divine, the laya pradhana, where the main aspect is dissolution. The adjournment of the follower into the ultimate supreme lord is the path of Vamachara. Vamachara tradition also involves rituals like cremation in ground, as there the "Vairagya" which is the complete detachment is available. The path of Vamachara is very dangerous to practice without the assistance of a proper Guru. The students of Vamachara Tantras are "Bramhacharis". They use their energy for healing.
Vamachara Tantra is part of an evolutionary process in consciousness which is moving towards integration with the Natural World. Nature is perceived as a sacred manifestation of the Divine where there is no separation between mind and body. Vamachara shows how one can understand what freedom is. It basically shows how one can experience the integration process. One is awakened to their own freedom and power thereby getting prepared to participate in the perpetual process of creation. Vamachara is particularly associated with Panchatattvas.