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Reading Room · Metaphysical Practices · Method

What is Reiki, and where did it come from?

Reiki is a Japanese healing practice in which practitioners lay hands lightly on or near a person. Practitioners trace it to Mikao Usui, a Japanese Tendai Buddhist lay monk who taught it in Tokyo in the early 1920s. Controlled studies have not established clear health effects.

Facts checked on against 28 sources, 13 of them museum, university, archive, library, government or primary texts.

Key facts

Every line comes from a source listed at the bottom of the page. The small numbers point to it.

1865Mikao Usui is born in Gifu Prefecture, Japan, and is recorded as a lay Tendai Buddhist.12
1922

Usui undertakes a 21-day retreat on Mount Kurama, after which practitioners say he received the healing ability he later called Reiki, and founds the Usui Reiki Ryoho Gakkai in Tokyo in April.342

1923After the Great Kanto earthquake, Usui treats victims and his students offer help, which brings Reiki to wider public notice.56
1925Usui initiates Chujiro Hayashi, a naval medical doctor, as a Reiki teacher, and Hayashi later opens his own school and clinic in Tokyo.15
1926Usui dies on 9 March in Fukuyama, Hiroshima, according to the Hikkei biography and other accounts.24
1935–1938Hawayo Takata, a Japanese woman living in Hawaii, receives treatment at Hayashi's clinic and is trained by him, receiving Master initiation in Hawaii in 1938.15
1980Takata dies in December 1980 after training 22 Reiki masters, who go on to spread her teachings.78

What the name means

Reiki practitioners describe the practice as working with universal life force energy, known as chi, qi, and prana in other cultures.910

Founding in 1920s Japan

Reiki was developed in Japan at the end of the 19th century by Mikao Usui, who was born in 1865 into a family of samurai ancestry and was a lay monk with a wife and two children.11127

The Hikkei biography reports that Usui entered a Tendai monastery as a child, later traveled abroad, and began Zen training in 1918 that lasted three years. It then describes a 21-day retreat on Mount Kurama after which he reportedly gained the healing power he later called Reiki. Practitioners also report that Usui used the monastic name Gyoho.213

According to the Hikkei biography, after the 1923 Kanto earthquake Usui treated victims, moved his center to Nakano in 1925, and taught Reiki widely. Estimates of the number of students he taught vary, with figures of more than 2,000 given in several accounts.27

Methods and teaching

Usui's daily practice included meditation, contemplation of the five Reiki Principles, and hands-on Reiki to self and others. Teachers passed Reiki to students through a course that included Reiju, a ceremony intended to pass Reiki from teacher to student. Usui taught Gassho meditation at the start of workshops and a breathing technique he called Joshin Kokyuu-Ho.914

Zadro and Stapleton describe Reiki as a biofield therapy in which an attuned therapist places hands on or near the client's body. Reiki is described as noninvasive and nonmanipulative, owing to gentle touch on or slightly above the body.1115

Chujiro Hayashi is credited with adding defined hand positions over the body and with setting up two healers working together with the patient lying down, a change from Usui's seated sessions. Hayashi developed a more systematic approach to Reiki, and the Reiki tradition credits him with these changes.1617

Spread to the West and the question of its history

Hawayo Takata, a first-generation Japanese-American, came to Hayashi's clinic for relief from several medical conditions, including asthma, and became a devoted student after months of treatment. With Hayashi's active guidance and support, she brought Reiki to Hawaii in 1937 and later to the US mainland, according to the University of Minnesota's Taking Charge of Your Wellbeing resource.718

Several writers say Takata's account of Usui as a Christian minister was not accurate. Accounts from later researchers, including William Lee Rand, describe a Christian origin story as a reaction to anti-Japanese feeling in America during and after the war.31920

What the tradition holds

How practitioners describe it, in their terms. Described, not endorsed.

Reiki is generally considered a spiritual practice and is not affiliated with any religion.921

Usui's most common version is called Usui Shiki Ryoho after its founder, Mikao Usui, who belonged to a group that wanted to develop psychic abilities.22

What the evidence shows

What historians, scientists and controlled tests have found.

Lee, Pittler and Ernst (2008) reported that nine randomised clinical trials of reiki met their inclusion criteria out of 205 relevant studies. They concluded that the evidence was insufficient to suggest reiki is effective for any condition, and described most trials as having small samples, weak designs and poor reporting.2324

Karaman and Tan (2021) reported reductions in fatigue among breast cancer patients receiving Reiki during chemotherapy. Orsak et al. (2015) found no statistically significant gains in symptom distress compared with standard care, and Catlin et al. (2011) found mental comfort gains after both real and sham Reiki.25

A systematic review by Jahantigh and colleagues reported that no firm conclusions could be drawn about Reiki's effectiveness, and the review linked reported benefits to non-specific factors such as relaxation and placebo effects.2627

Worked out from the evidence

Not stated outright by any one source. It is worked out from the sources cited.

  • The early history of Reiki rests mainly on accounts written after Usui's death, so the founding story is best read as a tradition with a documented core, not as a settled record.252828
  • Controlled studies so far have not shown a consistent health effect from Reiki, although some trials report short-term changes in mood or symptoms.26231825

Not yet confirmed

  • Which early sources, if any, can confirm Usui's life before the 1920s, given that accounts from Takata and later writers differ?
  • How far did Takata's Western teaching change the practice from the forms taught in Japan?

Sources

Museums, universities, archives and primary texts first. Every fact is paraphrased and nothing is copied; Wikipedia is never cited.

  1. Internet Archive: Hermetic Reiki: a complete practitioner's manual (2nd edition). Read on · Primary text
  2. Internet Archive: Usui Reiki Hikkei. Read on · Primary text
  3. ihreiki.com: Usui Mikao - International House of Reiki. Read on · Reference
  4. reiki.org: What is the History of Reiki? | Reiki. Read on · Reference
  5. reiki-meditation.co.uk: The History of Usui Reiki and the Reiki Principles | London | Reiki Training and Meditation Courses. Read on · Reference
  6. wrldrels.org: Usui Reiki Ryōhō (Reiki, Japan) – WRSP. Read on · Reference
  7. takingcharge.csh.umn.edu: Where Does Reiki Come From? | Taking Charge of Your Wellbeing. Read on · University
  8. thereikipage.com: History of Reiki. Read on · Reference
  9. Front Psychol: Investigating perceived stress and pain reduction following brief Reiki sessions in high-stress communities: an exploratory study.. Read on · Peer-reviewed journal
  10. adhyatmikvikasmission.com: Explore Mikao Usui’s History | Avoid Reiki Healing Mistakes. Read on · Reference
  11. Front Psychol: Does Reiki Benefit Mental Health Symptoms Above Placebo?. Read on · Peer-reviewed journal
  12. beaconsofchange.com: Mikao Usui: what the 2024 Taiwan archive revealed | Beacons of Change. Read on · Library
  13. kisetsu.es: Mikao Usui, the Founder of Reiki: History and Legacy - Kisetsu. Read on · Reference
  14. Internet Archive: Reiki Handbook. Read on · Primary text
  15. Holistic Nursing Practice: Reiki in Contemporary Healthcare. Read on · Peer-reviewed journal
  16. iarp.org: History of Reiki: Read about the Origin and Traditions of Reiki. Read on · Reference
  17. theyogafamily.com: History of Usui Reiki ~ by Dr Jacques Tamin — THE YOGA FAMILY. Read on · Reference
  18. britannica.com: Reiki | Healing, Japan, Origin, Techniques, & Skepticism | Britannica. Read on · Reference
  19. isbourne.org: Origin Stories: Reiki. Read on · Reference
  20. verareiki.com: History - Vera Reiki. Read on · Reference
  21. medRxiv: The use of Reiki in medical settings: personal journeys of Reiki practitioners. Read on · Peer-reviewed journal
  22. mcgill.ca: Should We Take Reiki Seriously? | Office for Science and Society - McGill University. Read on · Reference
  23. International Journal of Clinical Practice: Effects of reiki in clinical practice: a systematic review of randomised clinical trials. Read on · Peer-reviewed journal
  24. sciencedirect.com: Reiki - an overview | ScienceDirect Topics. Read on · Reference
  25. Support Care Cancer: The effects of Reiki practice on breast cancer patients: a systematic review.. Read on · Peer-reviewed journal
  26. Rev Assoc Med Bras (1992): Reiki for decrease postmenopausal symptoms and depression: a randomized clinical trial.. Read on · Peer-reviewed journal
  27. Palliat Med: Reiki and Therapeutic Touch for symptom burden and quality of life in palliative settings: A systematic review.. Read on · Peer-reviewed journal
  28. landofreiki.co.uk: History of Reiki — Land of Reiki and Aroma - Reiki, Coach, FSG. Read on · Reference

Written by The Midway Machine. Facts checked against 28 sources on 2026-10-20.

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