Trance induction and sensory modality
Trance-like states which are often interpreted as religious ecstasy or visions and can be deliberately induced using a variety of techniques, including prayer, religious rituals, meditation, pranayama (breathwork or breathing exercises), physical exercise, coitus (and/or sex), music, dancing, sweating (e.g. sweat lodge), fasting, thirsting, and the consumption of psychotropic drugs such as cannabis. Sensory modality is the channel or conduit for the induction of the trance. Sometimes an ecstatic experience takes place in occasion of contact with something or somebody perceived as extremely beautiful or holy. It may also happen without any known reason. The particular technique that an individual uses to induce ecstasy is usually one that is associated with that individual's particular religious and cultural traditions. As a result, an ecstatic experience is usually interpreted within the context of a particular individual's religious and cultural traditions. These interpretations often include statements about contact with supernatural or spiritual beings, about receiving new information as a revelation, also religion-related explanations of subsequent change of values, attitudes and behaviour (e.g. in case of religious conversion).
Benevolent, neutral and malevolent trances may be induced (intentionally, spontaneously and/or accidentally) by different methods:
Auditory driving through the sense of hearing by chanting, auditory story telling, mantra, overtone singing, drumming, music, etc.;,
Kinesthetic driving through the sense of feeling and movement through the kinesphere by dance, story telling by movement, mudra, embodying rituals, yoga, breathwork,oxygen deprivation, sexual stimulation etc.;
Visual Driving through the sense of sight by yantra, visual story telling, mandala, cinema, theater, art, architecture, beauty, strobe lights, form constants, symmetry;
Olfactory driving through via scent through the sense of smell by perfume, pheromones, incense, flowers, pollen, indeed any scent for which we have an association or memory, etc.;
Gustatory driving through the sense of taste and indigestion; including: starvation, herbs, hallucinogens and drugs. As the intake of food and beverage entails intra-bodily chemical reactions through digestion, some infer that all food may be considered 'medicine' or 'drugs' and therefore contribute to the induction of discernible psycho-physical states (refer Ancient Medicine). It can be attained through the ingestion of psychoactive drugs such as alcohol and opiates, or psychoactive plants and chemicals such as LSD, 2C-I, peyote, marijuana, mescaline, Salvia Divinorum, MDMA, psychedelic mushrooms, or datura (Jimson weed).
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Disciplines: Yoga, Sufism, Surat Shabd Yoga; meditation; and
Miscellaneously: traumatic accident, sleep deprivation, nitrogen narcosis (deep diving), fever, by the use of a sensory deprivation tank or mind-control techniques, hypnosis, meditation, prayer; and
Naturally occurring: dreams, lucid dreams, euphoria, ecstasy, psychosis as well as purported premonitions, out-of-body experiences, and channeling.