According to the modern scholar Geoffrey Samuel, while Bon is "essentially a variant of Tibetan Buddhism" with many resemblances to Nyingma, it also preserves some genuinely ancient pre-Buddhist elements.
[8] Bonpos identify the Buddha Shenrab Miwo (Wylie: gshen rab mi bo) as Bon's founder, although no available sources establish this figure's historicity.
[15] Following the Chinese invasion of Tibet in 1950, Bonpo scholars began to arrive in Europe and North America, encouraging interest in Bon in the West.
Early Western studies of Bon relied heavily on Buddhist sources, and used the word to refer to the pre-Buddhist religion over which it was thought Buddhism triumphed.
"Yungdrung" refers to the left-facing swastika, a symbol which occupies in Bon a similar place as the vajra (Wylie: rdo rje) in Tibetan Buddhism, symbolising indestructibility and eternity.
[13] He attained Buddhahood several hundred years before Sakyamuni Buddha, in a country west of Tibet, called Olmo Lungring or Tazig (Tasi), which is difficult to identify and acts as a semi-mythical holy land in Bon (like Shambala).
[35] Like Padmasambhava, he is also held to have defeated and subjugated many demons through his magical feats, and like King Gesar, he is also believed to have led numerous campaigns against evil forces.
[35] Tonpa Shenrab is held to have visited the kingdom of Zhangzhung (an area in western Tibet around Mount Kailash),[36] where he found a people whose practice involved spiritual appeasement with animal sacrifice.
[34] In the fourteenth century, Loden Nyingpo revealed a terma known as The Brilliance (Wylie: gzi brjid), which contained the story of Tonpa Shenrab.
This produced five elements (earth, air, fire, water, and space) which came together into a vast "cosmic egg", from which a primordial being, Belchen Kékhö, was born.
Prominent features were "great sacrificial rituals", especially around royal coronations and burials, and "oracular rites derived from the folk religion, especially magical possessions and healings that required the priests to exhibit shamanic powers".
[47] Some sources claim that a debate between Bonpos and Buddhists was held, and that a Tibetan king ruled Buddhism the winner, banishing Bon priests to border regions.
[53] Thus, Bonpo tertons (treasure finders) like Shenchen Luga and Meuton Gongdzad Ritrod Chenpo revealed important Bon termas.
[54] While Yungdrung Bon and Nyingma originated in similar circles of pre-Sarma era ritual tantric practitioners, they adopted different approaches to legitimate their traditions.
[53] The main Bonpo figures of the Tibetan renaissance period were tertons (treasure revealers) who are said to have discovered Bon texts that had been hidden away during the era of persecution.
[46] A key figure in the establishment of Bon monasticism was Nyamme Sherab Gyaltsen (mNyam med Shes rab rgyal mtshan, c.
[56] According to Jean Luc Achard, "his insistence on Madhyamaka, logic, gradual path (lamrim) and philosophical studies has modeled the now traditional approach of practice in most Bon po monasteries.
[13][57] It is centered on the figures of Drenpa Namkha, Tsewang Rigdzin and Padmasambhava, which in this school are considered to have transmitted and written commentaries on the works of Tonpa Shenrab in around the 8th century.
[13] According to Jean Luc Achard, the New Bon movement begins in Eastern Tibet with the works of Tulku Loden Nyingpo (1360–1385), a terton who discovered the Zibji (gzi brjid), a famous Tonpa Shenrab biography.
[13] The movement continued to develop, with new Bon terma texts being revealed well into the 18th century by influential tertons like Tulku Sangye Lingpa (b.
Bonpos remained a stigmatised and marginalised group until 1979, when they sent representatives to Dharamshala and the 14th Dalai Lama, who advised the Parliament of the Central Tibetan Administration to accept Bon members.
[76] Per Kværne writes that, at first glance, Bon "appear to be nearly indistinguishable from Buddhism with respect to its doctrines, monastic life, rituals, and meditational practices.
"[78] However, both religions agree that they are distinct, and a central distinction is that Bon's source of religious authority is not the Indian Buddhist tradition, but what it considers to be the eternal religion which it received from Zhangzhung (in Western Tibet) and ultimately derives from land called Tazik where Tonpa Shenrab lived, ruled as king and taught Bon.
This schema includes all the teachings of Bon and divides them into nine main classes, which are as follows:[81][82] Traditionally, the Nine Ways are taught in three versions: in the Central, Northern and Southern treasures.
It includes figures like Magyu Sangchog Tartug ('Supreme Secret of Mother Tantras, Attaining the Limit'), Trowo Tsochog Khagying ('Wrathful One, Supreme Lord Towering in the Sky'), Welse Ngampa ('Fierce Piercing Deity'), and Meri ('Mountain of Fire').
[77] The Bon Kanjur comprises four main categories: the Sutras (mdo), the Perfection of Wisdom Teachings ('bum), the Tantras (rgyud) and Higher Knowledge (mdzod, 'Treasure-house'), which deals with the supreme forms of meditation.
[101] The Tenjur material is classified into three main categories according to Kvaerne: "'External', including commentaries on canonical texts dealing with monastic discipline, morality; metaphysics and the biographies of Tonpa Shenrap; 'Internal', comprising the commentaries on the Tantras including rituals focusing on the tantric deities and the cult of dakinis, goddesses whose task it is to protect the Doctrine, and worldly rituals of magic and divination; and finally 'Secret', a section that deals with meditational practices.
[77]The largest part of the Bon canon is made up of numerous termas (treasure texts), which were believed to have been hidden away during the period of persecution and to have begun to be discovered during the 10th century.
[101] Bonpos hold that their termas were hidden by masters like Drenpa Namkha during the period of decline and persecution under King Trisong Detsen, and then were rediscovered by later Bon tertons (treasure discoverers).
[106] According to Jean Luc Achard, the main Dzogchen cycle studied and practised in contemporary Bon is The Oral Transmission of the Great Perfection in Zhangzhung (rDzogs pa chen po zhang zhung snyan rgyud), a cycle which includes teachings on the Dzogchen practices of trekcho and thogal (though it uses different terms to refer to these practices) and is attributed to the Zhangzhung sage Tapihritsa.