
Being one of the panchamahabhoota, agni (fire) has the characteristic that it cannot exist without a base. In the body it exists in pitta dosha.
Agni is responsible for the following functions:
Digestion - indigestion (Pakti- Apakti)
Vision- absence of vision (Darshanam- Adarshanam)
Degree of heat (Matra- Amatratvamushmanala)
Normal -abnormal complexion (Prakrit - Vikarit varnam)
Prowess- fear (Shaurya- Bhaya)
Anger - exholoration (krodham- Harsham)
Confusion- clarity of mind (Moha- Prasadan)
For the metabolic processes in the body, there are three main groups of biological factors, probably exhibiting enzymatic functions (agnis).
Jatharagni or Koshthagni:
Present in the pachak pitta. It is responsible for the digestion and the absorption of nutritious substances during this process.
The process of digestion (ahar pachan) is divided in three stages, which collectively is called awastha paka and can be divided in the following.
Amavstha (Madhuravastha) Paka - in stomach
Pachymanavastha (Amlavstha) Paka - in 'grahani' (Duodenum)
Pakavstha (Katuavstha) Paka - in small and large intestine
As the rasa changes in different phase of digestion these phase of digestion are called avsthapaka. At the end of the digestion the digested food have their original rasa which is in accordance with the rasa of the ingested food. This is called as Nistha paka .It is also called popularly as Vipaka.
Madhur rasa & Lavan rasa have Madhura Vipaka, Amla rasa have amla vipaka and Katu, Tikta & Kashaya rasa have Katu vipaka.
Panchabhutagnis :
In ayurveda it is believed that everything is made up of five elements and so is the body. These five elements are the panchmahabhoota and are responsible for constituting every living being in the world. Agni transforms the Asharir Mahabhoota (external mahabhoot) to Sharir Mahabhoota. Example - When we drink water Jala Mahabhoota (water) dominates and later the water is transformed by Jala Mahabhoota agni to the Sharir Jala Containing five types of biological factors, it is responsible for the processing of the five basic elements into a composition useful to the body.
Dhatvagnis : The third group contains seven types, each for the assimilation of the seven tissues This assimilation takes place successively. From the absorbed nutritious substance, plasma (rasa) is produced first; from plasma, blood (rakta) is formed, then muscular tissue (mamsa), adipose tissue (meda), bony tissue (asthi), bone marrow (majjan) and the reproductive cells (shukra).
Besides performing all the metabolic functions agni takes care of digestion (ahar pachan) and in the absence of ahar it acts on the ama pachan i.e. properly metabolize the improper metabolites. When ahar and ama are absence Agni does the function of dhatu i.e. rasa, rakta etc. Digestion of dhatu is a fatal condition in which dhatus are broken down to get energy. The reduction or deficiency of the quantum of dhatu in the human body leads to the disease called 'Kshaya roga'.
In ayurveda it is believed that all the pathology occurs due to the impairment in Agni (Kaya). Hence the correction of Kaya i.e. Agni is called the treatment or 'Kaya Chikitsa' in ayurveda
Agnis are also classified into four categories according to how they manifest in the human being:
Tikshnagni -sharp,
Mandagni - mild,
Vishamagni - irregular, and
Samagni - regular or Balanced.
About The Author
Dr.Shashikant Patwardhan is practicing as 'Ayurvedic Consultant' for last 25 years at the city -Sangli , Maharashtra -India. He has done his graduation in Ayurvedic Medicine and Surgery [B.A.M&S] and post graduate Fellowship of Faculty of Ayurvedic Medicine [F.F.A.M.] From Tilak Ayurved Mahavidyalaya, Pune University , India, during the years 1970-1976. He is a chief editor and Ayurvedic Consultant of a 'Comprehensive website on Ayurveda - http://www.ayurveda-foryou.com He is an author of many books on Ayurveda and is first to publish them in ebook format.Up till now he has written four ebooks - 1. Ayurvedic Cure of Diabetes 2. Home Remedies in Ayurveda 3. Treat Common Diseases with Ayurveda & Yoga and 4. Ayurvedic Principles Revealed He regularly writes articles on various topics in Ayurveda in Ayurvedic health magazines and alternative medicine sites.
AP - President-elect Barack Obama warned of dire and lasting consequences if Congress doesn't pump unprecedented dollars into the economy, making an urgent pitch for his mammoth spending proposal in his first speech since his election.
AP - The United Nations halted aid deliveries to the besieged Gaza Strip on Thursday, citing Israeli attacks on its staff and installations hours after it said tank fire killed one of its drivers as he went to pick up a shipment.
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AP - "The Dark Knight" soared away with every trophy it was nominated for Wednesday at the 35th annual fan-favorite CBS ceremony. The caped crusader flick won five awards, including favorite cast, superhero, action movie and on-screen matchup for Christian Bale's Batman and the late Heath Ledger's Joker.
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Reuters - President-elect Barack Obama will seek Thursday to rally support for a massive fiscal stimulus package by warning that the United States could remain mired in recession for years without bold action.
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Reuters - Citigroup Inc is leading other lenders in advanced talks with key U.S. senators on legislation that would allow judges to set new repayment terms for millions of mortgage holders who wind up in bankruptcy court, the Wall Street Journal said, citing people involved in the talks.
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AFP - Rockets fired into northern Israel from Lebanon on Thursday sparked a new military alert as Israeli jets carried out mass strikes on smuggling tunnels in Gaza.
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