Veerya

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Veerya (also spelled as Virya) means potency or active components. The ayurvedic pharmacological principles include five factors, viz. rasa (taste), guna (qualities), veerya (potency), vipaka (post-digestive effect), and prabhava (significant effect). These are commonly known as rasa-panchaka or dravyagat pancha padartha.[1] Veerya is one of the crucial factors in constituting the pharmacology of drug. In pharmacology, as per Ayurveda, the word Veerya [SAT Code- F.22] is envisaged as the potential factor of the drug by which it performs specific actions in the body. This broad term is employed to explain lesser or greater potential drug factors concerning different processes and procedures to achieve the desired effect in the body.[2]

Contributors
Section/Chapter/topic Concepts/Veerya
Authors Bhojani M. K. 1,
Joglekar Aishwarya 2,
Joshi Sumedh 3
Reviewer Basisht G.4,
Editor Deole Y.S.5
Affiliations 1 Department of Sharir Kriya, All India Institute of Ayurveda, New Delhi, India
2 Department of Samhita Siddhant, All India Institute of Ayurveda, New Delhi, India
3Department of Dravyaguna, All India Institute of Ayurveda, New Delhi, India
4 Rheumatologist, Orlando, Florida, U.S.A.
5 Department of Kayachikitsa, G. J. Patel Institute of Ayurvedic Studies and Research, New Vallabh Vidyanagar, Gujarat, India
Correspondence emails meera.samhita@aiia.gov.in,
carakasamhita@gmail.com
Publisher Charak Samhita Research, Training and Development Centre, I.T.R.A., Jamnagar, India
Date of publication: Febraury 04, 2023
DOI 10.47468/CSNE.2023.e01.s09.127

Etymology 

The term ‘Veerya’ is derived from the grammatical Sanskrit root ‘Veer’ or ‘Vri’ meaning ‘Vikranti’ or specific power to express vigour, strength etc.[3] Monnier Williams dictionary[4] mentions veerya means vigour, strength, power; heroism, prowess, valour, fortitude, courage, firmness; virile energy, virility; dignity, consequence; splendour, lustre, vigour, energy and virility. It also synonymous with terms like shukra dhatu (reproductive components including semen, virility), param dhatu (ultimate dhatu, nectar of all the dhatu), shakti (potency), dravya karma (drug action), prabhava, parakrama (valour or courage) as termed in Vachaspatyam.[5]

Synonyms 

Shakti, prabhava, samarthya [Dalhana on Su.Sa.Sutra Sthana 40/1] bala, and gunotkarsha [Chakrapani on Su.Sa. Sutra Sthana .40/3]

Characteristics 

Dravya is classified into two types: rasa pradhana (dominated by rasa) and veerya- pradhana (dominated by veerya). [Chakrapani on Cha.Sa. Sutra Sthana 2/17] The dietary items (ahara dravya) are considered rasa pradhana, while medicines (aushadha) are deemed to be veerya pradhana. The aushadha are again divided into three types based on veerya, namely mild (mrudu veerya), moderate (madhyama veerya) and sharply acting (teekshna veerya) [Chakrapani on Cha.Sa. Sutra Sthana 2/17]. This can be summarised in the table given below:

Table 1: Three types of Dravya based on veerya
Veerya wise classification Examples Matra (dose) to be used
Teekshna veerya Shunthyadi (herbs like Shunthi- Zingiber offincinale) Karsha (12 grams)
Madhyama veerya Bilva-agnimanthadi (herbs like Bilva- Aegle marmelos and Agnimantha- Premna serratifolia etc.) Ardhapala (24 grams)
Mridu veerya Amalakadi (herbs like Amalaki- Phyllanthus emblica) Pala (48 grams)
Table 2: Opinions of various authors regarding the concept of veerya
Sr. No Author name Opinion Reference
1. Charak Considers chintya (explainable) and achintya (unexplainable) veerya. Cha. Sa. Sutra Sthana 26/70
Defines veerya as the potency or power of the drug through which it performs its work or action Cha.Sa. Sutra Sthana.26/65
2. Sushruta Denoted veerya as the generator of a drug action Su.Sa. Sutra Sthana.40/3
3. Dalhana Karma (action) that cannot be performed by dravya, rasa, guna, or vipaka is veerya. Veerya is activity potential or karyashakti of dravya. Dalhana on Su.Sa. Sutra Sthana.40/3
4. Chakrapani The term veerya is meant for all rasa, guna, vipaka, or prabhava of a dravya Chakrapani on Cha.Sa. Sutra Sthana 26/64-65
Divides the veerya into chintya and achintya, where the latter can be termed as the prabhava of a particular dravya. Chakrapani on Su.Sa. Sutra Sthana.40/5
5. Arundatta The prominence of ushna guna will lead to development of ushna veerya, while sheeta guna prominence results in sheeta veerya. Arundatta on A.H. Sutra Sthana.1/17
6. Hemadri The digestion and metabolism (kayagnipaka) leads to the development of eight guna, amongst which sheeta and ushna are considered the most dominant termed as ushna and sheeta veerya. It is termed as shakti arising from the transformation of guna. Hemadri on A.H. Sutra Sthana.1/17
7. Shivdas Sen Veerya is the the most supreme and nectar part (atishaya sara bhaga) of the panchamahabhuta, further dividing it into chintya and achintya. Shivadas Sen on Su.Sa. Sutra Sthana.40/5
8. Bhavamishra Bhavamishra has clearly differentiated the veerya from prabhava. He quotes the prabhava as shakti of the drug. Bhavamisra, Bhavaprakasha with commentary by Dr Bulusu Sitaram, Mishra-Prakarana, Poorvakhanda, Shloka Number 161, Volume 1, Reprinted 2015, Chaukhamba Orientalia, Varanasi Page No. 117
9. Acharya Yadavji Trikamji Interprets veerya as the active principle of the drug.[6] Acharya Yadavaji Trikamji, DravyaGuna Vidnyanam, Poorvardha,Published by Nirnay Sagar Press, Bombay Page no 249-277
10. Prof P.V.Sharma The active principle is also a dravya and veerya being a  type of guna cannot be equated with active principle PV Sharma, DravyaGuna vijnana, Vol I, Chaukhambha Bharti Academy, Varanasi, Edition year 2013, Page no 263-278
11. 13. Prof. C. Dwarkanath The term veerya conveys the idea of energy. The energy of a body is its capacity for doing work and the measure of energy is work. Energy may be potential or kinetic,2 where the sheeta veerya can be considered as potential energy, while ushna veerya as kinetic energy. Veerya A general principle of drug action [Ayusoft] 2

Thus in order to summarize various forms of veerya can be depicted in following figure-

forms of veerya

Types of veerya

Charak and Sushruta Samhita mention the eight types (ashtavidha) and two types (dwividha veerya) of veerya. However, emphasis is given on the two types (dwividha veerya) [Cha.Sa. Sutra Sthana 26/64, Su.Sa. Sutra Sthana 40/5]. Other types can be considered as chintya-achintya and sahaja-kritama as mentioned in the previous point.

Eight types (ashtavidha veerya vaada)

Ashtavidha veerya or eight types of veerya are as below:

  1. Guru (heaviness)
  2. Laghu (lightness)
  3. Snigdha (unctuousness)
  4. Ruksha (dryness)
  5. Teekshna (piercing, sharp)
  6. Manda (slowness, mildness)
  7. Sheeta (coldness)
  8. Ushna (hotness). [Cha.Sa. Sutra Sthana 26/64]

These are considered as eight representatives of twenty gurvadi guna mentioned in the Samhita. These are also termed as guna possessing veerya like properties or guna named as veerya i.e. veeryakhya guna. Sushruta Samhita mentions the vishada and pichchhila guna in place of guru and laghu guna while stating the veerya. [Su.Sa. Sutra Sthana 40/5]
The rationale behind ashtavidha veerya vaada can be discussed as given in the table below [Arunadatta on A.H. Sutra Sthana 9] :

Table 3: Rationale behind eight important potencies
Reason Explanation
Samagra Guna Saarataa (Stability after metabolism)
  • Eight guna remain constant and unchanged during the process of digestion
  • It can be considered as relatively stable compared to other gurvadi gunas.
Shaktyutkarshata (High potency of action)
  • Are highly potent in their actions
  • More predominantly active than other gurvadi guna.
Vyavahaara mukhyatva (More practical utility)
  • Most commonly put into practice than the rest of 12 guna.
  • Are more commonly mentioned in Ayurveda texts than other gunas
  • Have more practical utility
Bahulyataa dravya
  • More frequently mentioned in Ayurveda texts. 

The effect of eight potencies (ashtavidha veerya) on dosha, probably contributing to systemic effects / therapeutic effects, can be described in the table below. These can be determined through the karma of dravya possessing the particular guna- (Su.Sa. Sutra Sthana 46/515-524)

Table 4. Effect of eight veerya on dosha and body systems
Sr. No Veerya Effect on doshas Systemic effects
1. Ushna
(hot)
Vata hara
Kapha hara Pitta vardhaka
Deepana (~appetizer), pachana (~digestive), dahajanana (~causes burning sensation), murchhana (~cause fainting), 
swedana (~induce perspiration) , vamanakarak (induce emesis), virechana (~purgative), vilayana (~escharotic), 
bhramakaraka (~induce giddiness), trushnajanana (~induce thirst), aashupaaka (~cause quicker digestion and suppuration),  avrushya (~reduces fertile strength)
2. Sheeta
(cold)
Pitta hara
Vata kapha vardhaka
Prahlaadana (~soothing) , vishyandana (~secretogogue) , sthirikarana (~stabilizer), 
kledana (~moistening) , jeevaniya (~enhance life expectancy) , stambhana (~styptic), raktaprasadana (~enhances quality of rakta dhatu), balyam (~giving strength)
3. Snigdha
(unctuous)
Vata hara
kapha vardhaka
Snehana (~sudation), brimhana (~increases mass) , santarpana (~nourishing), vajikarana (~aphrodisiac), 
vayasthaapana (~increase viability)
4. Ruksha
(dryness)
Vata vardhaka, 
kapha pittahara
Samgrahana (~astringent), peedana (~cause obscuration) , virookshana (~causing dryness), ropana (~cause healing)
5. Guru
(heaviness)
Kapha vardhaka vatahara Upalepana (~cause act of smearing) , brimhana (~nourishing), balya (~strengthening)
6. Laghu
(lightness)
Kaphahara vatavardhaka Lekhana (~cause scrapping), langhana (~cause lightness), dhatu kshaya (~ destruction of dhatus)
7. Mridu
(softness)
Pittahara Rakta and mamsa prasaadana (enhances the quality of rakta and mamsa dhatu)
8. Teeksna
(sharpness)
Kaphahara Sangraahi (astringent), aachushana (~absorbs unwanted secretions) , avadarana (~cause tearing), stravana (~secretogogue)
9. Vishada
(cleansing)
Kaphahara Kledachooshana (~absorbs moisture), virookshana (~cause dryness), uparohana (~cause healing)
10. Pichchila
(slimy)
Kaphavardhaka Upalepana (~cause act of smearing), Purana (~cause healing), brumhana (~increases mass), Samsleshara (~avoids binding to the dhatus), vajikarana (~aphrodisiac)
Table 4: Assessment of eight potencies (ashtavidha veerya) [Su.Sa. Sutra Sthana 41/11]
Type of veerya Panchamahabhoota prominence Method of assessment
Sheeta Ambu (Jala) Sparshagrahya (~assessed by touch)
Ushna Agni Sparshagrahya (~assessed by touch)
Snigdha Prithvi + Ambu Chakshugrahya(~assessed by visionary sense)
Ruksha Vayu Chakshugrahya (~assessed by visionary sense)
Mrudu Jala + Aakasha Sparshagrahya (~Assessed by touch)
Tikshna Agni Mukha dukhotpeedanat (~assessed by the effect on buccal mucosa)
Picchila Jala Chakshu+sparshagrahya (~assessed by visionary sense and touch)
Vishada Prithvi + Vayu (Kshiti-sameerana) Chakshu+Sparshagrahya (~assessed by visionary sense and touch)

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References

  1. Bhavamisra, Bhavaprakasha with commentary by Dr Bulusu Sitaram, Mishra-Prakarana, Poorvakhanda, Shloka Number 161, Volume 1, Reprinted 2015, Chaukhamba Orientalia, Varanasi Page No. 117
  2. Available from Veerya A general principle of drug action – Ayusoft. https://ayusoft.ayush.gov.in/veerya-a-general-principle-of-drug-action/ accessed on 31/01/2023
  3. RāDhāKāNtadeva, Vasu, V., & VASU, H. (1886).Śabdakalpadrumah , Page No. 474 Available from: https://www.sanskritlexicon.unikoeln.de/scans/SKDScan/2020/web/index.php
  4. Monier-Williams, M. (1872) , Page No.955, Available from https://www.sanskrit-lexicon.uni-koeln.de/scans/MW72Scan/2020/web/webtc/indexcaller.php
  5. Bhaṭṭacarya, T. V. (1873). Vacaspatyam: Brihat Saṃskṛtabhidhanam. 5 5. Varaṇasi, Chaukhamba Saṃskṛita Series office, Page No. 4944
  6. Acharya Yadavaji Trikamji, DravyaGuna Vidnyanam, Poorvardha, Published by Nirnay Sagar Press, Bombay Page no 249-277