Niyama (Sanskrit: नियम) literally means positive duties or observances. In Indian traditions, particularly Yoga, niyamas are recommended activities and habits for healthy living, spiritual enlightenment and liberated state of existence. It has multiple meanings depending on context in Hinduism. In Buddhism, the term extends to the determinations of nature, as in the Buddhist niyama dhammas. In Pāli the spelling niyāma is often used.
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Virtues are extensively discussed in various ancient and medieval era texts of Hinduism. In its Yoga school, they are described in first two of eight limbs (steps, branches, components). The first limb is called yamas, which include virtuous self-restraints (the "don'ts"). The second limb is called niyamas which include virtuous habits, behaviors and observances (the "dos"). These virtues and ethical premises are considered in Hinduism as necessary for an individual to achieve a self-realized, enlightened, liberated state of existence (moksha).
- Śauca: purity, clearness of mind, speech and body
- Santoṣa: contentment, acceptance of others and of one's circumstances as they are, optimism for self
- Tapas: accepting and not causing pain
- Svādhyāya: study of self, self-reflection, introspection of self's thoughts, speeches and actions
- Īśvarapraṇidhāna: contemplation of the Ishvara (God/Supreme Being, Brahman, True Self, Unchanging Reality)
In the diverse traditions and historical debate within Hinduism, some texts suggest a different and expanded list of niyamas. For example, the Shandilya and Varuha Upanishads, the Hatha Yoga Pradipika, verses 552 to 557 in Book 3 of the Tirumandhiram of Tirumular suggest ten niyamas, in the sense of positive duties, desirable behaviors and discipline. The Hatha Yoga Pradipika lists the ten niyamas in the following order, in verse 1.18,
- Tapas: persistence, perseverance in one's purpose, austerity
- Santoṣa: contentment, acceptance of others and of one's circumstances as they are, optimism for self
- Āstika: faith in Real Self (jnana yoga, raja yoga), belief in God (bhakti yoga), conviction in Vedas/Upanishads (orthodox school)
- Dāna: generosity, charity, sharing with others
- Īśvarapūjana: worship of the Ishvara (God/Supreme Being, Brahman, True Self, Unchanging Reality)
- Siddhānta vakya śrāvaṇa: listening to the ancient scriptures
- Hrī: remorse and acceptance of one's past, modesty, humility
- Mati: think and reflect to understand, reconcile conflicting ideas
- Japa: mantra repetition, reciting prayers or knowledge
- Huta: rituals, ceremonies such as yajna sacrifice
Some texts replace the last niyama of Huta with Vrata. The niyama of Vrata means making and keeping one's vows (resolutions), which may be pious observances. For example, a promise to fast and visit a pilgrimage site is a form of Vrata. The education process in ancient India, where Vedas and Upanishads were memorized and transmitted across generations without ever being written down, required a series of Vrata niyamas over a number of years.
Other numbers of Niyamas
At least sixty five (65) ancient and medieval era Indian texts are known so far that discuss Niyamas and Yamas. Most are in Sanskrit, but some are in regional Indian languages of Hindus. The number of Niyamas mentioned in these texts range from just one to eleven, however 5 and 10 are the most common. The order of listed niyamas, the names and nature of each niyama, as well as the relative emphasis vary between the texts. For example, Sriprashna Samhita discusses only one Niyama in verse 3.22, and that Niyama being Ahimsa. Shivayoga Dipika, Sharada Tilaka, Vasishtha Samhita, Yoga Kalpalatika, Yajnavalkya Smriti and many others, each discuss ten Niyamas. Bhagavata Purana discusses eleven Niyamas, with kind hospitality of guests, to one's best ability, as an additional virtuous behavior. Other texts substitute one or more different concepts in their list of Niyamas. For example, in the five Niyamas listed by Markandeya Purana in verse 36.17, Matanga Parameshvaram in verse 17.31 and Pashupata Sutra in verse 1.9, each suggest Akrodha (non-anger) as a Niyama.
Overlap between Yamas and Niyamas
Some yamas (restraints, the "don'ts") are understood as reverse of niyamas (attitudes, behaviors, the "dos") in Hatha Yoga Pradipika. For example, Ahimsa and Mitahara are called as yama as well as niyama in verse 1.17 and 1.40. The text calls Ahimsa (nonviolence and non-injuring anyone by one's actions, words or in thoughts) as the highest virtuous habit, Mitahara (moderation in one's eating and drinking habits) as the best personal restraint, and Siddhasana as the foremost of Asanas in verse 1.40.
In Buddhist commentary (from the 5th to 13th centuries CE) we find the pañcavidha niyama, fivefold niyama which occurs in the following texts:
- In the Aṭṭhasālinī (272-274), the commentary attributed to Buddhaghosa on the Dhammasangaṅi, the first book of the Theravāda Abhidhamma Piṭaka;
- In the Sumaṅgala-Vilāsinī (DA 2.431), Buddhaghosa’s commentary on the Dīgha Nikāya;
- In the Abhidhammāvatāra (PTS p.54), a verse summary of Abhidhamma by Buddhaghosa’s contemporary, Buddhadatta.
- Abhidhammamātika Internal Commentary. (p. 58) The Abhidhamma-mātika is a matrix of abstracts for the Abhidhamma, with lists of pairs and triplets of terms from which the whole of the text can theoretically be reconstructed. The passage on the niyamas is from an internal commentary on the mātika associated with the Dhammasaṅgaṇī (the niyāmas don’t appear to be mentioned in the mātrix itself, but only in this appendix.); and was composed in South India by Coḷaraṭṭha Kassapa (12th–13th century).
- Abhidhammāvatāra-purāṇatīkā (p.1.68). Composed by in Sri Lanka by Vācissara Mahāsāmi c. 13th century or Sāriputta c. 12th century. This text is a commentary on the text of the Abhidhammāvatāra Nāmarūpa-parichedo (ṭīka) so is technically a sub-sub-commentary. This commentary is an incomplete word by word commentary.
- utu-niyāma “the constraint of the seasons”, i.e. in certain regions of the earth at certain periods the flowering and fruiting of trees all at one time (ekappahāreneva), the blowing or ceasing of wind, the degree of the heat of the sun, the amount of rain-fall, some flowers like the lotuses opening during the day and closing at night and so on;
- bīja-niyāma “the constraint of seeds or germs”, i.e. a seed producing its own kind as barley seed produces barley;
- kammaniyāma “the constraint of kamma”, i.e. good actions produce good results and bad actions produce bad results. This constraint is said to be epitomised by [Dhammapada] verse 127 which explains that the consequences of actions are inescapable;
- citta-niyāma “the constraint of mind”, i.e. the order of the process of mind-activities as the preceding thought-moment causing and conditioning the succeeding one in a cause and effect relation;
- dhamma-niyāma “the constraint of dhammas”, i.e. such events like the quaking of the ten thousand world-systems at the Bodhisatta’s conception in his mother’s womb and at his birth. At the end of the discussion Sumaṅgalavilāsinī passage the Commentary says that dhammaniyāma explains the term dhammatā in the text of the Mahāpadāna Sutta (D ii.12) (Cf. S 12.20 for a discussion of the use of the word dhammaniyamatā in the suttas)
In these texts the fivefold niyama was introduced into commentarial discussions not to illustrate that the universe was intrinsically ethical but as a list that demonstrated the universal scope of paṭicca-samuppāda. The original purpose of expounding fivefold niyama was, according to Ledi Sayadaw, neither to promote or to demote the law of karma, but to show the scope of natural law as an alternative to the claims of theism.
C.A.F. Rhys Davids was the first western scholar to draw attention to the list of pañcavidha niyama, in her little book of 1912 entitled simply Buddhism. Her reason for mentioning it was to emphasise how for Buddhism we exist in a "moral universe" in which actions lead to just consequences according to a natural moral order, a situation she calls a "cosmodicy" in contrast with the Christian theodicy.:
In Mrs Rhys Davids scheme the niyamas become:
- kamma niyama: ("action") consequences of one's actions
- utu niyama: ("time, season") seasonal changes and climate, law of non-living matter
- bīja niyama: ("seed") laws of heredity
- citta niyama:("mind") will of mind
- dhamma niyama: ("law") nature's tendency to perfect
This is similar to the scheme proposed by Ledi Sayadaw. Western Buddhist Sangharakshita has taken up Mrs Rhys Davids conception of the niyamas and made it an important aspect of his own teachings on Buddhism. 
In Pāli the word is spelled both niyama and niyāma, and the Pali Text Society Dictionary says that the two forms have become confused. It is likely that niyāma is from a causative form of the verb ni√i.
See also: Karma in Buddhism
- Donald Moyer, Asana, Yoga Journal, Volume 84, January/February 1989, page 36
- N Tummers (2009), Teaching Yoga for Life, ISBN 978-0736070164, page 16-17
- Pali English Dictionary, s.v. niyāma.
- N Tummers (2009), Teaching Yoga for Life, ISBN 978-0736070164, page 13-16
- Y Sawai (1987), The Nature of Faith in the Śaṅkaran Vedānta Tradition, Numen, Vol. 34, Fasc. 1 (Jun., 1987), pages 18-44
- KH Potter (1958), Dharma and Mokṣa from a Conversational Point of View, Philosophy East and West, 8(1/2): 49-63
- Āgāśe, K. S. (1904). Pātañjalayogasūtrāṇi. Puṇe: Ānandāśrama. p. 102.
- Sharma and Sharma, Indian Political Thought, Atlantic Publishers, ISBN 978-8171566785, page 19
- Swami Satchidananda (2012). The Yoga Sutras of Patanjali. Integral Yoga Publications. ISBN 1938477073.
- SA Bhagwat (2008), Yoga and Sustainability. Journal of Yoga, Fall/Winter 2008, 7(1): 1-14
- Polishing the mirror Yoga Journal, GARY KRAFTSOW, FEB 25, 2008
- Īśvara + praṇidhāna, Īśvara and praṇidhāna
- SV Bharti (2001), Yoga Sutras of Patanjali: With the Exposition of Vyasa, Motilal Banarsidas, ISBN 978-8120818255, Appendix I, pages 680-691
- Mikel Burley (2000), Haṭha-Yoga: Its Context, Theory, and Practice, Motilal Banarsidas, ISBN 978-8120817067, pages 190-191
- Fountainhead of Saiva Siddhanta Tirumular, The Himalayan Academy, Hawaii
तपः सन्तोष आस्तिक्यं दानम् ईश्वरपूजनम् ।
सिद्धान्तवाक्यश्रवणं ह्रीमती च तपो हुतम् ।
नियमा दश सम्प्रोक्ता योगशास्त्रविशारदैः ॥१८॥
See: Hatha Yoga Pradipika; Note: this free on-line source author lists Tapas twice in the list of niyamas; others list the second last word of second line in the above as जपो, or Japa
- Kaelber, W. O. (1976). "Tapas", Birth, and Spiritual Rebirth in the Veda, History of Religions, 15(4), 343-386
- William Owen Cole (1991), Moral Issues in Six Religions, Heinemann, ISBN 978-0435302993, pages 104-105
- Īśvara Koeln University, Germany
- Hri Monier Williams Sanskrit English Dictionary
- Monier Williams, A Sanskrit-English Dictionary: Etymologically and philologically arranged, p. 740, at Google Books, Mati, मति, pages 740-741
- HS Nasr, Knowledge and the Sacred, SUNY Press, ISBN 978-0791401774, page 321-322
- व्रत Vrata, Sanskrit-English Dictionary, Koeln University, Germany
- Hartmut Scharfe, Handbook of Oriental Studies - Education in Ancient India, Brill, ISBN 978-9004125568, pages 217-222
- K. V. Gajendragadkar (2007), Neo-upanishadic Philosophy, Bharatiya Vidya Bhavan, University of California Archives, OCLC 1555808, pages 96-97
- S. Dasgupta (2012), A History of Indian Philosophy, Volume 5, Motilal Banarsidas, ISBN 978-8120804166, pages 134-136
यमेष्व् इव मिताहारम् अहिंसा नियमेष्व् इव ।
मुख्यं सर्वासनेष्व् एकं सिद्धाः सिद्धासनं विदुः ॥४०॥
Note 1: The verse number is different in different translations, in some this is 1.38; Sanskrit and English translation source: Hatha Yoga Pradipika Brahmananda, Adyar Library Series, Madras
- Aṭṭhasālinī: Buddhaghosa’s Commentary on the Dhammasaṅgani. ed. E. Muller, PTS 1979 (orig. 1897) p.272, para. 562; trans. Pe Maung Tin as The Expositor PTS London 1921 vol.II p.360.
- Sumaṅgala-Vilāsinī, Buddhaghosa’s Commentary on the Dīgha Nikāya. ed. W. Stede PTS 1931 p.432.
- Abhidhammāvatāra in Buddhadatta’s Manuals. ed. AP Buddhadatta PTS 1980 (orig. 1915) p.54.
- Manuals of Buddhism. Bangkok: Mahamakut Press 1978. Niyama-Dipani was trans. (from Pāli) by Beni M. Barua, rev. and ed. C.A.F. Rhys Davids, n.d.
- Buddhism: a study of the Buddhist norm London: Williams and Norgate 1912, pp.118–9.. Reprint by Read Books, 2007, Books.Google.com
- Padmasiri De Silva, Environmental philosophy and ethics in Buddhism. Macmillan, 1998, page 41. Books.Google.com
- Niyama-Dipani (online see below)
- The Three Jewels Windhorse 1977 (originally published 1967) Windhorse pp.69–70; and in the lecture ‘Karma and Rebirth’, in edited form in Who is the Buddha? Windhorse 1994, pp.105–8.
- Pali Text Society. "The Pali Text Society's Pali-English dictionary". Digital South Asia Library. p. 368. Retrieved 20 November 2014.
- Yama and Niyama Comments on the Patanjali’s Scheme.
- The Niyama-Dipani: The Manual of Cosmic Order. by Ledi Sayadaw
- The Fivefold Niyāma Translations of the commentarial texts which mention the niyāmas.