Spiritual Cleansing

Ritual purity in Judaism, Islam and Hinduism

In Judaism, the mikveh is described as a pool or bath of clear water in which immersion renders ritually clean a person who has become ritually unclean. An encyclopedic account states that its chief use today is by women before marriage, after niddut and after childbirth, and by converts, and that the purpose of immersion is spiritual rather than physical cleanliness.

In Islam, Britannica describes ghusl as the major ablution, the washing of the entire body in ritually pure water with a statement of intent. It is required after specified states of major ritual impurity and for the dead before burial. Sources reviewed here did not include a verified description of wudu, the lesser ablution.

In Hinduism, a tirtha is a holy river, mountain or other place made sacred through association with a deity or saint. Britannica states that bathing is said to be particularly cleansing of sin when performed at the confluence of two rivers or at the source or joining of one of the seven sacred rivers, and that pilgrims usually bathe on reaching a tirtha.

Shinto and Buddhist strands

In Shinto, the Encyclopedia of Shinto describes misogi as the washing of the whole body to purify oneself of misfortune, sin and pollution. It traces the idea to the Kojiki and Nihon shoki accounts of Izanagi, who performed ablutions after returning from the underworld. The entry notes that misogi and harae form a linked sequence, called misogiharae, though the terms originally referred to distinct practices.

For Buddhism, the source reviewed describes a fortnightly uposatha day on which monks of a monastery gather for mutual confession of offenses and recitation of the 227-rule monastic code. This is a confession practice rather than a washing rite, and the sources reviewed do not cover other Buddhist purification practices.

Baptism, Indigenous ceremony and diasporic ritual

In Christianity, Britannica describes baptism as a sacrament of admission to the church that signifies the washing away of past sins and the rebirth of the individual into a new life, and states that it is performed only once in a person's life. It is an initiation rite within the church rather than a repeated cleanse, and this page treats it that way.

The Canadian Encyclopedia describes smudging as a cultural ceremony practiced by a wide variety of Indigenous peoples in Canada and elsewhere. It states that colonization repressed such traditions, that the practice survived, and that nations have their own culturally specific traditions.

A folklife essay describes la limpieza, ritual cleansing, in Santería as a practice in which a godmother or godfather passes a blessed object over an adherent's body, used on its own or to open the way for other rituals. The essay presents Santería as merging traditional Yoruba religion with Roman Catholicism.

Western esoteric background

Britannica notes that the Hermetic Order of the Golden Dawn drew on Rosicrucianism, Kabbala and other traditions and emphasized ceremonial magic. The source does not describe banishing, so this page does not describe its form, dates or purpose.

Words for purification differ by tradition

The sources use different terms that should not be merged. The Jewish source glosses mikveh as literally a collection or gathering, Islamic sources use ghusl, Hindu sources use snana for pilgrim bathing, and Shinto uses misogi and harae. The Encyclopedia of Shinto says misogi and harae are sometimes used interchangeably but originally signified separate practices.

The word smudging is English in origin, according to The Canadian Encyclopedia, and is applied broadly to ceremonies in which sacred herbs are burned. Indigenous peoples have their own terms, such as atisamanihk in Cree, meaning at the smudge, and nookwez in Ojibwe, meaning to smudge medicinally.

Cleansing, detox and energy clearing

The National Center for Complementary and Integrative Health describes detoxes and cleanses as programs that can include fasting, juice-only diets, restricted foods, supplements, colon cleansing or saunas, aimed at removing toxins. That meaning is physical and is covered on the Detoxification page, not here.

Energy Clearing is a separate Machipedia page on practices that aim to clear what practitioners call energy. This page uses spiritual cleansing for religious or ritual purification and for its modern wellness descendants. Related pages include Aura Reading, Crystal Healing and Sound Bath. The sources reviewed here do not describe salt, crystal or sound cleansing of spaces and objects, so those uses are not characterized.

Related and confusable terms

The term Macbeth effect comes from psychology, not religion. Zhong and Liljenquist used it for the proposal that a threat to moral purity induces a need to cleanse oneself physically. It names a laboratory hypothesis about washing and morality and should not be read as a name for any religious rite.

Scrupulosity is a clinical term from the International OCD Foundation for a subtype of obsessive-compulsive disorder centered on religious or moral worries. It is not a synonym for devotion or for ritual purity observance.

How the idea appears in religious life

Adherents and encyclopedic sources describe purification as tied to specific occasions. For mikveh, the source lists marriage, niddut, childbirth and conversion, and notes that some groups also use immersion as an aid to spirituality on the eve of Shabbat and festivals, especially Yom Kippur. Ghusl is also traditionally performed before the Friday prayer, the two major festivals and the hajj.

In Shinto, the entry describes misogi as done before a religious service or during a shrine visit. In Hindu pilgrimage, Britannica describes bathing, circumambulating the holy place and making an offering as typical acts on reaching a tirtha. Britannica also notes that the Ganges is polluted by sewage, industrial waste and other contaminants, and that high levels of disease-causing bacteria have been found in it.

Smudging in Indigenous ceremony

The Canadian Encyclopedia states that smudging generally involves prayer and the burning of sacred medicines such as sweetgrass, cedar, sage and tobacco, that protocols differ by nation, and that a smudge is frequently led by an elder or spiritual leader. It places smudging alongside sweat lodges and sacred pipes as significant to spiritual beliefs in certain cultures; see the Sweat Lodge Ceremony page. This page does not describe ceremonial procedures.

Indigenous and clinical authors writing about hospitals describe smudging as a traditional ceremony that patients ask to practice on healthcare premises. One Alberta policy paper by authors who include Indigenous community members describes consulting Indigenous communities and Elders so that the policy reflected cultural authenticity.

Modern wellness and other uses

A Smithsonian Folkways fellow writing in JSTOR Daily reports that white sage smudge sticks are widely sold by large retailers and online, often marketed as sustainable or ethically sourced. In that account, commercial sale of sage for wellness use is a separate matter from its role in Indigenous ceremony, which is the point at which cultural appropriation concerns arise.

Other relevant Machipedia pages are Yoruba Tradition, which relates to the roots of Santería described in the folklife essay, and Tea Ceremony, a separate ritual form. The sources reviewed do not document how modern practitioners of space clearing or banishing describe their work, so this page does not characterize those uses.

What traditions say cleansing is for

The sources attribute differing aims to each tradition. The Jewish account stresses that the purpose of immersion is spiritual cleanliness and quotes Maimonides on intention. Shinto sources describe removing misfortune, sin and pollution. Britannica describes baptism as signifying the washing away of past sins, and bathing at a tirtha as cleansing of sin. Ghusl restores a state of ritual purity required for prayer.

These are claims within each tradition's own framework. They concern ritual status, moral or spiritual condition and standing in a community, and they are not claims about physical health outcomes.

Claims made for smudging and incense

The Canadian Encyclopedia states that the smoke from sacred herbs is thought to purify the body and soul and bring clarity to the mind, and that smudging is used to cleanse places said to hold negative energy and during crisis, ill health and death. It also reports that smudging has provided a means of healing for communities affected by residential schools, according to revitalized cultural beliefs.

Some researchers frame traditional smoke use as hygiene. The authors of a study of frankincense in a church describe burning in places of worship as having had hygienic functions since ancient times, and a study of Indian havan smoke describes testing what it calls ancient knowledge about medicinal smoke.

Claims drawn from psychology and wellness

Zhong and Liljenquist proposed that physical cleansing can reduce the upsetting consequences of unethical behavior and lessen threats to one's moral self-image, concluding that washing hands could be an antidote to threatened morality. Brooks and colleagues proposed that rituals improve performance by reducing anxiety. Both are research hypotheses about laboratory tasks and not claims made by any faith tradition.

Washing and morality: the Macbeth effect

Zhong and Liljenquist reported three studies in Science in 2006 in which threats to moral purity increased the mental accessibility of cleansing concepts, desire for cleansing products and the likelihood of taking antiseptic wipes, and in which cleansing reduced distress after recalling unethical acts. Earp and colleagues later ran direct replications of Study 2 with the original materials, larger and more varied samples, and reported that they could not detect the effect in any experiment.

A 2018 meta-analysis by Siev and colleagues pooled 15 studies and found a small weighted effect (g = 0.17, 95% CI 0.04 to 0.31) that was not significant in studies from independent laboratories (g = 0.07, 95% CI -0.04 to 0.19). The authors concluded there is little evidence for an overall Macbeth effect, though it may appear under certain conditions. A 37-person study found that participants who did not wipe their hands performed worse on three tasks after recalling an immoral deed.

Ritual and anxiety

Brooks and colleagues reported experiments in which people who enacted rituals, defined as predefined sequences of symbolic actions without a direct practical purpose, performed better in public and private tasks, with anxiety reduction as the mechanism. Behaviors described as random produced smaller gains than the same behaviors described as a ritual. Hobson and colleagues found that rehearsed ritual sequences reduced a neural marker of error response, though performance and self-reported anxiety did not change.

These studies used short, invented sequences in laboratory settings. They did not test religious purification ceremonies, immersion or smudging, and their results should not be applied to those practices.

Smoke, air quality and smudging studies

Nautiyal and colleagues reported that one hour of burning wood and herbs in a closed room was followed by more than 94 percent reduction in airborne bacterial counts by 60 minutes. A study of frankincense incense in a 17th-century church reported reductions of up to 91 percent for bacteria and 80 percent for fungi in the air of a sealed space. Both measured microbial counts in specific settings with specific materials and did not measure health outcomes.

A qualitative study of nine hospitalized American Indian patients identified themes of accessibility, the role of chaplains and staff, experience of the ritual and cultural connection, and its authors state that smudging is an important component of holistic health care. This is an interview study of experience, not a test of a cleansing effect.

What has not been tested

Claims that a ritual removes spiritual impurity, negative energy or sin are theological or metaphysical, and the sources reviewed report no test of them. PubMed searches run for this page covered the Macbeth effect, medicinal smoke, incense and COPD, smudging in Indigenous health, and spiritual cleansing or ritual purification in randomized trials; none returned a trial of ritual cleansing against a control. This page does not present these beliefs as established or as disproved.

Smoke exposure and fire

A Taiwanese cohort study followed 18 outpatients with moderate-to-severe COPD and found that particulate levels returned to background an hour after incense burning, with no short-term change in lung function or symptoms detected. The authors note the small sample and short study period and suggest that patients with COPD avoid staying in rooms where incense is burning for up to one hour. Other studies cited in the paper's background associate incense burning with lower lung function and with respiratory tract carcinoma in a Singapore cohort.

Authors describing an Alberta hospital smudging policy report that development required managing open flames within medical facilities and addressing concerns about ceremonial smoke. The sources reviewed do not report fire injury data. This page is not a substitute for medical advice, and anyone with asthma, COPD or smoke sensitivity should ask their clinician.

White sage, harvesting and cultural respect

The JSTOR Daily article reports that white sage is depleted in many areas because of poaching, that most sage reaching United States markets is wild-harvested, and that the plant is not formally listed as endangered or threatened even though its numbers are declining. It adds that United Plant Savers lists Salvia apiana on its at-risk list and that Indigenous practitioners argue commercialization depletes the supply and makes it harder for Native people to harvest sustainably.

The Canadian Encyclopedia states that protocols vary by nation and that elders maintain and give guidance on them. Indigenous nations differ, so a single set of rules should not be assumed, and who may lead or share a ceremony is for each community to say.

Scrupulosity and cleansing compulsions

The International OCD Foundation describes scrupulosity as an OCD subtype centered on religious or moral worries, in which compulsions can include repeated prayer, excessive confession and reassurance seeking. It states that scrupulosity is not tied to any one religion, that cognitive behavior therapy with exposure and response prevention is the primary psychological treatment, and that treatment can involve faith leaders without trying to change belief.

The 2015 hand-wiping study discusses OCD because threatened morality and physical cleansing are central concerns in that disorder. People whose cleansing or purity rituals feel compulsory or cause distress can seek assessment from a mental health professional. Ritual observance does not by itself indicate a disorder, and the sources reviewed give no threshold.

Physical cleanses are a separate matter

The National Center for Complementary and Integrative Health reports that few human studies of detox diets exist, that most are low quality, and that colonic irrigation can cause serious side effects and prolonged fasting can cause dangerous electrolyte imbalances. These concerns apply to physical cleanse programs, not to ritual purification. Spiritual cleansing should not delay or replace necessary medical or mental health care.