|Literal meaning||magical movement instrument, channels and inner breath currents|
Trul khor ('magical instrument' or 'magic circle;' Skt. adhisāra), in full as tsa lung trul khor (Sanskrit: vayv-adhisāra 'magical movement instrument, channels and inner breath currents'), and also known as yantra yoga, is a Vajrayana discipline which includes pranayama (breath control) and body postures (asanas). From the perspective of the Indo-Tibetan Buddhist traditions of Dzogchen, the mind is merely vāyu (breath) in the body. Thus working with vāyu and the body is paramount, while meditation, on the other hand, is considered contrived and conceptual.
The late Namkhai Norbu Rinpoche (1938-2018), a proponent of trul khor, preferred to use the equivalent Sanskrit term yantra yoga when writing in English. Trul khor derives from the instructions of the Indian mahasiddhas (great sages) who founded Vajrayana (3rd to 13th centuries CE).
Trul khor traditionally consists of 108 movements, including bodily movements (or dynamic asanas), incantations (or mantras), pranayama and visualizations. The flow or vinyāsa of movements are likened[by whom?] to prayer beads.
Lung (Tibetan:རླུང; Wylie: rlung) is equivalent to the Sanskrit vāyu.
Namkhai Norbu was the first to discuss Trul Khor in English with his book on Yantra Yoga, essentially a commentary on a practical yoga manual by Vairotsana. Namkhai Norbu began dissemination of Yantra Yoga through his practical teaching and esoteric transmission of this discipline within the International Dzogchen Community, which he founded some time after 1975 in Italy, Merigar.
Chaoul (2006) has begun discussion of Bon traditions of Trul Khor in English with his thesis from Rice University. In his work, Chaoul makes reference to a commentary by the famed Bonpo Dzogchen master, Shardza Tashi Gyaltsen.
- Tibetan: འཕྲུལ་འཁོར་ཉི་ཟླ་ཁ་སྦྱོར་གྱི་དགོངས་འགྲེལ་དྲི་མེད་ནོར་བུའི་མེ་ལོང, Wylie: 'phrul 'khor nyi zla kha sbyor gyi dgongs 'grel dri med nor bu'i me long
- Shardza Tashi Gyaltsen: byang zab nam mkha' mdzod chen las snyan rgyud rtsa rlung 'phrul 'khor
- Wallace, Karma Chagmé ; with commentary by Gyatrul Rinpoche ; translated by B. Alan (1998). A spacious path to freedom : practical instructions on the union of Mahāmudrā and Atiyoga. Ithaca, N.Y.: Snow Lion Publications. p. 69. ISBN 1559390719.
- Norbu, Namkhai; Andrico, Fabio (2013). Tibetan yoga of movement : the art and practice of yantra yoga. Berkeley, California: North Atlantic Books. ISBN 9781583945568.
- Chaoul, Alejandro (2006). Magical movements ('phrul 'khor): ancient yogic practices in the Bon religion and contemporary medical perspectives. Rice University. p. 52. Retrieved 7 March 2011.[dead link]
- Tenzin Wangyal Rinpoche 2011.
- Chaoul-Reich, Alejandro. Spinning the Magical Wheel in Snow Lion Magazine. Snow Lion Publications. Retrieved 1 December 2006.
- Chaoul-Reich, Alejandro. Tibetan Yoga from the Bon Tradition in Snow Lion Magazine. Snow Lion Publications.
- Lipson, Elaine. Into the Mystic in Yoga Journal.
- Norbu, Chögyal Namkhai (2000). Revision: Laura Evangelisti. Translation: Des Barry, Nina Robinson, Liz Granger, Carol Chaney. Yantra Yoga Manual. Italy, Shang Shung Edizioni. (This booklet is published for those who have received the transmission of these practices from Chögyal Namkhai Norbu Rinpoche.)
- Trulkhor: The Magical Movement of Tibet by M. Alejandro Chaoul
- Yogic practices in the Bon tradition by M Alejandro Chaoul
- Ancient drawing from the Blue Beryl by Sangye Gyamtso (1653-1705)
- Lipman, Kennard (1987).'The Dynamic Yoga of Tibet: combining asanas, breathing exercises, and flowing movements, Yantra Yoga aims to return us to our "natural state".' Cited in: Yoga Journal, May 1987, No. 74. Active Interest Media. ISSN 0191-0965. Source:  (accessed: Friday April 9, 2010) p. 46-49
- Tenzin Wangyal Rinpoche (2011). Awakening the Sacred Body. Hay House. ISBN 978-1-4019-2871-1.
- Chogyal Namkhai Norbu, Trans. by Adriano Clemente. Yantra Yoga Snow Lion Publications.
- Chang, Garma C. C.: Teachings of Tibetan Yoga/an Introduction to the Spiritual, Mental, and Physical Exercises of the Tibetan Religion, Publisher: Kensington Pub Corp, Published: 1 October 1993, ISBN 978-0-8065-1453-6
- Ligmincha introduction
- Chaoul, M. Alejandro (2003). Yogic practices (rtsarlung ’phr ul ’khor) in the Bon tradition and possible applications as a CIM (complementary and integrative medicine) therapy. Presented at the Tenth Seminar in 2003 for the International Association for Tibetan Studies.
- Literature from the Tibetan Tradition Relevant to Six Yogas of Naropa Practitioners - An Annotated Bibliography and Selected Excerpts
- Yantra Yoga The website dedicated to Yantra Yoga.