Laksha in the Classical Ayurvedic Texts

What does Laksha mean in classical Ayurvedic literature?

Laksha is the Sanskrit name for lac, the hardened resinous crust produced by the lac insect on the twigs of certain host trees. The insects settle on a branch in vast numbers, feed on the sap, and coat themselves in a resin that seals the wood in a continuous shell. Laksha is that crust, scraped from the branch.

Laksha is animal derived. It is not a plant gum, not a tree exudate, and not vegan. Classical Sanskrit had no trouble with this, and several of the older names state the insect origin outright. The confusion is modern, produced by the fact that Laksha is catalogued alongside plant resins and behaves much like them once cleaned. The material and the stages it passes through are set out in the complete guide to Laksha.

Which classical texts and lexicons actually mention Laksha?

Sanskrit medical literature falls into two families. The first is the compendia: the Charaka Samhita, the Sushruta Samhita, and the later synthesis of Vagbhata in the Ashtanga Sangraha and the Ashtanga Hridayam. These are arranged by subject, not by substance. A single material rarely gets a passage of its own, appearing instead as one name inside a list of components.

The second is the nighantu literature, the Ayurvedic lexicons, which give a substance its own entry. The Dhanvantari Nighantu is among the earlier surviving examples, and the tradition continues through the Madanapala, Kaiyadeva, Bhavaprakasha and Raja Nighantus of the later mediaeval centuries. If you want a classical author writing about Laksha rather than simply naming it, the nighantus are where you look.

The general Sanskrit lexicons record the word too. The Amarakosha lists the synonyms for lac among its commercial vocabulary, and that placement is informative: lac was trade material long before anyone classified it.

What are the Sanskrit synonyms for Laksha?

Sanskrit lexicography works through paryaya, sets of synonyms gathered in verse. A substance is identified by the whole cluster rather than by one name, and each name catches a different aspect of it. For Laksha the cluster is rich.

• Jatu. An old and common word for lac, and more loosely for any sticky resinous matter. Its currency outside medicine shows in the Mahabharata episode of the jatugriha, the house built of lac.
• Alaktaka, Alakta. The refined red lac dye, and the name that runs through classical Sanskrit poetry, where alaktaka is the red colour applied to the feet.
• Names built on krimi. Sanskrit krimi covers insects and grubs, and compounds formed from it mark Laksha plainly as the product of an insect rather than of a plant.
• Names built on the tree. A further group describes the resin as something forming on the branch, naming the host rather than the insect.

One point of vocabulary needs separating out. The Sanskrit lakshya, a mark or target, and laksha in the sense of a hundred thousand, are not the same word as the resin, although the etymology connecting the two is repeated widely. Take it as folk etymology rather than as a finding.

How do the lexicons group Laksha with other substances?

The nighantus organise their material into vargas, chapters gathering substances of a kind. Laksha is placed among the aromatic and resinous materials, with the tree gums and fragrant woods. In the Bhavaprakasha Nighantu it sits in the chapter that opens with Karpura and runs through the resins. The insect origin was known, and it did not move Laksha out of the resin chapter.

Some entries distinguish grades of Laksha by the tree the insects settled on, ranking resin from one host above another. That distinction, with colour and form, begins the classical approach to grading.

How do classical authors describe the qualities of Laksha?

Classical description runs through a fixed vocabulary that does not carry over cleanly into modern categories.

• Rasa (the taste of a substance, taken as a primary property, not a sensory detail)
• Guna (the physical qualities, such as light or heavy, dry or unctuous)
• Virya (the potency, classified broadly as heating or cooling)
• Vipaka (the taste a substance is held to take on after digestion)
• Dosha (the three functional principles, Vata, Pitta and Kapha, which a substance is said to increase or reduce)

For Laksha the entries converge on an astringent Rasa, given as Kashaya and sometimes with a bitter note beside it. The Virya is cooling, Shita, and the Vipaka is generally pungent, Katu. In terms of Dosha the substance is most often characterised as reducing Kapha and Pitta.

The attributions are not identical from one lexicon to the next. Their authors worked across centuries and sometimes from different grades of the material. Where entries disagree, the honest report is that they disagree.

Why is there no chapter on Laksha in the Charaka Samhita or the Ashtanga Hridayam?

The answer is structural. Neither work was written as a materia medica, and the Charaka Samhita is arranged by theme and by the logic of practice. The Ashtanga Hridayam is a compressed verse synthesis of the earlier compendia, and the compression is severe: a substance that would fill a paragraph elsewhere becomes a single word inside a metrical list.

Three consequences follow. Search by synonym, since a verse using Jatu will never surface in a search for Laksha. Read the commentators, who carry much of the identification work: Chakrapanidatta on the Charaka Samhita, Dalhana on the Sushruta Samhita, Arunadatta and Hemadri on the Ashtanga Hridayam. Then go to the nighantus for description. The compendia tell you only that a compiler filed Laksha in a particular set, not what he thought it was.

Laksha outside the medical texts

Lac was a commodity before it was a subject of classification, and that life explains much of its vocabulary. It gave a red dye, sealed and stiffened objects, and was worked as a moulding material. The Mahabharata's house of lac assumes an audience already familiar with it and with how readily it burns.

The word travelled. Lac passed through the trading languages into European ones and stands behind lacquer, while shellac takes its English name from lac supplied in thin flakes. What separates the classical substance from the shellac sold today is processing stage rather than identity, worked through in the comparison of Laksha and shellac.

How to read a classical reference to Laksha without over reading it

Watch the ambiguity of Jatu. It is a genuine synonym for lac and also a general word for sticky resinous matter. Context and commentary decide which sense is meant, and a translator who renders every Jatu as lac is overstating the evidence.

Mind the translations. English versions render Laksha as lac, gum lac, lac dye or shellac, and those are not interchangeable. Each points at a different stage of the same material, so the translator's choice quietly settles a question the Sanskrit left open. Where classical sources name a powdered form, the thing named already has a preparation history behind it, and the classical account of Churnam, the finely ground powder of Ayurvedic practice, is set out in the discussion of Laksha Churnam.

Resist the urge to modernise. Kashaya is not astringency in a modern chemical sense, and Shita Virya is not a temperature reading. Read the vocabulary on its own terms and Laksha comes into focus as classical authors saw it: an insect made resin, filed with the gums, named a dozen ways.

Frequently asked questions about Laksha in the classical texts

Is Laksha mentioned in the Charaka Samhita?

Laksha appears in the compendia as a component named within compound formulations and grouped lists, rather than as a chapter of its own. A reader who wants a classical author describing the substance itself will find far more in the nighantu literature, built around entries for single substances.

What is Laksha called in the Ashtanga Hridayam?

Vagbhata writes in compressed verse, so substances are named by whichever synonym fits the metre. Laksha and Jatu are both in circulation, and searching for one will miss the other. The commentaries of Arunadatta and Hemadri settle which substance a given name denotes.

Is Laksha a plant resin or an animal product?

It is animal derived. The resin is secreted by the lac insect on the branches of host trees and collected by scraping the encrusted twigs. Classical Sanskrit records that origin openly in several synonyms, so Laksha does not suit anyone avoiding animal derived materials.

What are the main Sanskrit synonyms for Laksha?

The cluster includes Jatu, the old general word for lac, and Alaktaka, the refined red dye of classical poetry, along with compounds formed on krimi, the word for insect, and names describing the resin as something formed on a branch.

Which classical text gives the fullest account of Laksha?

The nighantu lexicons, taken together. Each records the synonyms and sets the substance out in the standard vocabulary of Rasa, Guna, Virya, Vipaka and effect on Dosha. Comparing several beats relying on one, because the entries differ and the differences are part of the record.

Does Laksha mean one hundred thousand in Sanskrit?

That is a different word. The sense of a hundred thousand, familiar in English as lakh, and lakshya, meaning a mark or target, are separate from the name of the resin, although a popular etymology linking the two circulates widely.