Ching Hai first demonstrated the "Immeasurable Light Meditation Center and the Way of Sound Contemplation" or Quan Yin method of meditation in Miaoli, Taiwan. The Quan Yin method "Full Initiation" involves a life-long commitment to a
vegan diet, adherence to the
Five Precepts of
Buddhism and at least two hours meditation daily. "Quick initiation" or "Convenient Method", requires a half hour's meditation daily and abstinence from meat for ten days each month. Thailand
Mahidol University International College comparative religion studies
syllabus classifies Hai's
sect as a
Religious movement within
Mahayana Buddhism, alongside
Thích Nhất Hạnh and
Tzu Chi movements.
Transpersonal psychologist and
Advaita Vedanta scholar Timothy Conway writes "While she was in deep
spiritual retreat in the
Indian Himalayas, under a very old teacher who evidently taught the way of
Surat Sabda Yoga (as found in the
Radhasoāmi tradition)", this final
enlightenment evidently dawned. After her breakthrough, Ching Hai continued to practice deep meditation for many months, then went to Taiwan". Conway lists Hai in the "Women of Buddhism" section of his Narrative Encyclopedic
Sourcebook "Women of Spirit: Saints, Teachers, Healers, Sisterhoods and Goddesses of East and West".
Religious studies scholar Jennifer Eichman notes that this particular meditation method is not part of the standard Buddhist repertoire. Hai's modified synthesis of the method is primarily in Christian-Buddhist jargon with a sprinkling of Hindu ideas. Ching Hai is more likely to cite the Bible than Hindu texts. Ching Hai claims, following standard
Zen doctrine, that everyone is the Buddha; they simply need to realize this fact. In a departure from Christian doctrine, Ching Hai claims that God is not the creator of humans; rather
karmic accumulation is responsible for the repeated transmigration of the soul. Korean
Dahnhak Qigong expert Kim Tae-young, author of the popular
Leading Experience guidebooks (in Korean) — published in 102 volumes since 1990, has written in
Leading Experience vol 37 (1997) that
Quan Chi (concentrating on
Chi) and
Quan Nian, (observing
conceptions) are more familiar terms than the term
Quan Yin (observation of the inner vibration). Kim at that time; an initiate of Hai's "Convenient Method" explains "Quan Yin signifies the practice of observing sound in the literal sense. It is not the crude vibratory sound of matter we hear from the outside, but the deepest inner sound heard from the real self and the Truth". Regarding Hai's
Master lineage, Kim stated: Ching Hai rarely speaks about her Master
Khuda Ji. In 1999, attending and reviewing
Immediate Enlightenment, Eternal Liberation seminar In
Ireland, part of Ching Hai's 1999 European Lecture Tour,
Dominican Order priest Louis Hughes,
chairperson of
Dialogue Ireland a
Christian countercult ministry, raises the question of the true origins of Ching Hai's teaching: "In a brief autobiography she [Hai] explains that her significant spiritual experience came about as a result of time spent in the
Himalayas where she discovered 'the Quan Yin Method and the Divine Transmission'. Nowhere in the movement's literature is any mention made of how she came upon this enlightenment. Enquiring from one of her
retinue as to who Ching Hai's teacher was, yielded the vague reply. 'Khuda Ji – he lives in a cave in the Himalayas – maybe has left his body now.' Such
reticence in regards to the identity of one's initiating guru is quite unusual among
Oriental religious teachers". Religious studies scholars,
Michael York and others, include Ching Hai in the Indian
contemporary Sant Mat movements, where the method is called
Surat Shabd Yoga. While adhering to formless devotion (
Nirguna Brahman), the initiation of the method from a lineage guru or master is paramount. Professor of religious studies at the
University of Lancaster Christopher Partridge wrote that Ching Hai visited India and was initiated by
Thakar Singh, a
Ruhani Satsang Sant Mat master. Professor of philosophy
David C. Lane, a controversial disciple of
Charan Singh a
Radha Soami Satsang Beas Sant Mat Master, stated in his 2017 essay "Studying Cults, A Forty-Year Reflection" that "Ching Hai, tried to deny for many years her close association with the notorious shabd yoga guru, Thakar Singh, since she didn't want to be tainted by her former guru's sexual exploits". In an article titled "The Master from the Himalayan Cloud" published in
Supreme Master Ching Hai News Magazine vol 79 (February 1997), Ching Hai stated while she did practice
surat shabd yoga and attended different
ashrams in the past, the master who gave her the final and breakthrough transmission was a master she called Khuda Ji, whom she encountered on a her spiritual journey in the
Himalayas.
Ban in China The Quan Yin method and Ching Hai's group is banned in China since 1995. According to an official statement by Vietnamese authorities: A publication of the
Central Propaganda Committee divided these "heretical religions" into three groups. The first two groups included religions that sprung up locally from
Protestant foundations and Buddhist foundations. The third group contains those religions that were imported from overseas, such as Supreme Master Ching Hai. ==Controversies==