Shava sadhana is conducted generally on a
new moon day. In Shakta ritual as described in the
Tantrasara, the corpse is worshipped with flowers and invoked as a form of
Bhairava (a form of Shiva) and the seat of the Goddess and requested to awaken to please the Goddess. The
Tantrasara narrates that the practitioner should get off the corpse to draw a triangle or protective circle around him and the corpse or again to scatter mustard or sesame seeds in all directions. The sadhaka may also meditate on a deity. Offerings to the deity are put in the corpse's mouth. The practitioner may perform
pranayama and meditate on his guru and the deity in his mind. He can also practice
japa (repetition of a
mantra or a deity's names or epithets), till the corpse promises him to grant his wish. He may encounter an
Akashavani (a voice from the skies) which may try to tempt him with material things. He will experience terrifying visions and sounds as well as temptations; however the practitioner should remain untouched and concentrate on the meditation. Upon successful completion of the sadhana it is believed that the residing deity of the sadhana( Maa Tara / Mahadev ) appears before the sadhaka and the sadhaka would be blessed with Brahma-gyan and mantra-
siddhi (a supernatural power to use a mantra) or become one with Shiva / shakti. Uniting with Shiva-shakti is said to lead to detachment, a characteristic of the ascetic god. Shiva is himself equated with shava, the corpse. As the vessel of Shiva, the adept becomes an
avadhuta, a mystic who is beyond egoic-consciousness, duality and common worldly concerns. The
Tantrasara says that a voice may ask for more offerings or bless the practitioner by granting his wishes. Only rarest of the rarest sadhakas such as Krishnananda agamavagisha , sadhaka bamakhepa and ramprasad sen are said to have completed this sadhana successfully and believed to have seen the divine vision of Devi kali and Tara. Shakta practitioners are said to have a theophany of the Goddess, in the form of a young girl or woman or in the sky or she may possess the corpse. The Shakta practitioner is considered to be a child of the Divine Mother, who is surrounded by fear, tormented by ghosts and demons and overcome with love towards her and needs to be rescued by the Mother. When the Goddess is said to possess the corpse, the corpse is considered sacred as a
murti or vessel of the divine spirit. The head of the corpse is said to turn towards the devotee and begins speaking affectionately (or sometimes terrifyingly) with him. The devotee then asks for a boon (spiritual or worldly) that the Goddess is compelled to grant. Some practitioners regard that his own body becomes a corpse while performing the ritual. The Goddess fills life into him by possessing him. A sadhaka who becomes afraid when the corpse comes alive and falls inside the protective circle, dies; while one who falls outside is doomed to eternal insanity. The one who remains resolute is blessed with
moksha (salvation) and "occult powers". Persons who practice shava sadhana with lower goals may be blessed with siddhis, but those in turn may lead to their downfall. At the end of the ritual, the corpse is freed from his bondage of rope and bathed again. The corpse is buried or immersed in a body of water. All articles of worship are also cast into the water. The untying of the rope and immersion of the corpse is believed to release the contained energy, accumulated while the ritual was on. Although it is generally recommended to be performed alone in a deserted place, a
sadhu who performs shava sadhana may be sometimes aided by his Tantric female consort, who are known as uttara sadhika. She stays within the protective circle and helps the sadhu if he is getting distracted by the spirits. The sadhu may also call upon his
guru (not physically present at the site) to protect him in the ritual. The
Aghoris of
Varanasi perform shava sadhana with some difference in the ritual. The corpse is bound to a stake at the wrist or ankle by a silken thread and a protective circle drawn around it to keep evil spirits of the cremation ground away. The spirits are offered meat and liquor outside the circle. The spirits would try to talk with the practitioner and gain entry in the circle but he should ignore them until finally he will conquer them, forcing them to accept his offerings and leave. This is signified by the corpse's mouth opening a bit. An offering of
kheer is put in the corpse's mouth. Finally, the Aghori decapitates the corpse to acquire its skull or extracts a bone from its spine to gain control over its soul. The remaining body is cast in the river. The rite should be followed by a period of asceticism to gain mastery of the soul of the deceased. While the Aghori sits on the corpse's chest and meditates, the
ojha (exorcist or wizard) performs the ritual by seating on the stomach of the deceased. ==Related rituals==