The Brihadeeswara temple is, in a sense, a Sanskrit text rendered in granite. The text in question is the Karana Agama, one of the twenty-eight Saiva Agamas, a body of ritual-and- architectural scripture older than the temple and still in use a thousand years after the temple was built.

Western readers are sometimes told that a Hindu temple is “designed by the architect according to tradition”. This understates the situation. The Agama prescribes the site, the plan, the materials, the proportions of the lingam, the position of the priest's hand during the morning offering, the colour of the cloth in which the deity is dressed for the third watch of Shivaratri night. The temple is, more precisely, a Sanskrit text translated into stone, ritual and time.

What an Agama is.

The word Agama means “that which has come down” — a tradition handed on, the counterpart to nigama, “that which has come forth” (the Vedas). The Saiva Agamas are sectarian Sanskrit texts, composed between roughly the 5th and 10th centuries CE, that codify Saiva temple worship. They sit alongside, and sometimes in productive tension with, the older Vedic literature.

The twenty-eight Saiva Agamas.

The four padas.

Each Agama is structured as four padas (parts), with markedly different concerns:

  • Vidya pada — “knowledge”. The philosophical and theological framework. Cosmology, the nature of Shiva, the soul, liberation. This is the part Saiva Siddhanta philosophers read most.
  • Kriya pada — “ritual action”. The detailed prescriptions for consecration, daily worship, abhishekam, festival cycles. This is the priestly handbook.
  • Yoga pada — “discipline”. The meditative and yogic practices for the initiate. The least often consulted in temple operation.
  • Charya pada — “conduct”. The rules of priestly life, purification, ethics, ascetic practice.

The Karana Agama.

The Karana Agama is one of the eighteen Rudra Agamas — a substantial text, of which the kriya pada alone runs to several thousand verses. It is named for its emphasis on karana, the precise ritual actions of the priest. The choice of Karana at Brihadeeswara was deliberate: Raja Raja Chola's ritual advisors selected an Agama whose prescriptions matched the imperial scale of the building and the dynastic ambitions of the founder.

The Karana prescribes, among other things, the eleven-substance abhishekam, the six daily poojas, the use of paryanka beds at the close of the Ardhajama, the proportions of the Sadasiva lingam (which at Brihadeeswara is 3.7 metres, the largest in any Chola sanctum), and the architectural plan that gives the temple its eastern orientation and its single- axis processional symmetry.

Where the Agama is visible in the temple.

Once you have read the Karana — or even glanced at a summary — the temple is no longer opaque. The vimana's thirteen storeys recede in the proportional ratios the Karana prescribes for a Sadasiva temple. The dvarapalas at the gates hold the implements the Karana assigns to them (club and trident at the south, bow and arrow at the west). The prakara is divided into the seven zones the Agama defines for processional use. Even the position of the Nandi is specified — directly opposite the lingam, in a separate pavilion, at the prescribed distance.

“The Agama does not describe an existing temple. The Agama prescribes the temple that will exist. The order is reversed.”— S. P. Sabharathnam Sivacharyar, IFP-EFEO conference, Pondicherry, 2008

The Agama tradition today.

The Saiva Agamic tradition is not a museum object. Every Saiva temple in Tamil Nadu, Kerala, Andhra Pradesh and Karnataka still operates according to one Agama or another, with the priesthood trained in the relevant text. The Institut Français de Pondichéry has been the most active modern translator and critical-editor; the Sivacharya priests of Tamil Nadu continue to learn the kriya pada by oral transmission as well as text.

Brihadeeswara's Karana lineage has been continuous, with brief interruptions during the Maratha and colonial periods, since 1010. The priests who unlock the sanctum tomorrow morning will perform the abhishekam by the same prescriptions that governed the priests appointed by Raja Raja Chola a thousand years ago.

A practical note

You do not need to know the Agama to visit Brihadeeswara. But if you want to understand why the temple does what it does — why the dvarapala holds a club, why the Ardhajama ends at 21:10, why the lingam is exactly 3.7 metres — the Agama is the answer to every question. The IFP English translations are an accessible starting point.

Common questions

Are there equivalent Vaishnava Agamas? Yes — the Pancharatra and Vaikhanasa Agamas govern Vaishnava temple worship in a parallel fashion. The Vaikhanasa tradition is older; the Pancharatra is more widespread.

How do I read the Karana Agama? The IFP critical edition of the kriya pada, edited by Bruno Dagens, is the scholarly starting point. For a non-specialist introduction, see Hélène Brunner's essays on Saiva ritual.

Did the Agama change over the centuries? The text did not; the interpretation did, modestly. Modern Sivacharya practice differs from medieval practice in small ways — the addition of festival processions, the inclusion of certain non-Agamic offerings — but the core prescriptions are unchanged.