A mandala is a geometric configuration of symbols. In various spiritual traditions, mandalas may be employed for focusing attention of practitioners and adepts, as a spiritual guidance tool, for establishing a sacred space and as an aid to meditation and trance induction. In the Eastern religions of Hinduism, Buddhism, Jainism and Shinto it is used as a map representing deities, or especially in the case of Shinto, paradises, kami or actual shrines. A mandala generally represents the spiritual journey, starting from outside to the inner core, through layers.
Thangka painting of Manjuvajra mandala
The Womb Realm mandala. The center square represents the young stage of Vairocana. He is surrounded by eight Buddhas and bodhisattvas (clockwise from top: Ratnasambhava, Samantabhadra, Saṅkusumitarāja, Manjushri, Amitābha, Avalokiteśvara, Amoghasiddhi and Maitreya)
Mandala of Vishnu
Painted 17th-century Tibetan 'Five Deity Mandala', in the centre is Rakta Yamari (the Red Enemy of Death) embracing his consort Vajra Vetali, in the corners are the Red, Green, White and Yellow Yamaris, Rubin Museum of Art
A ganacakra is also known as tsok, ganapuja, cakrapuja or ganacakrapuja. It is a generic term for various tantric assemblies or feasts, in which practitioners meet to chant mantra, enact mudra, make votive offerings and practice various tantric rituals as part of a sādhanā, or spiritual practice. The ganachakra often comprises a sacramental meal and festivities such as dancing, spirit possession, and trance; the feast generally consisting of materials that were considered forbidden or taboo in medieval India like meat, fish, and wine. As a tantric practice, forms of gaṇacakra are practiced today in Hinduism, Bön and Vajrayāna Buddhism.
Ganachakra, Nurpur, Himachal Pradesh, India, c. 1790