The Lost Book
In the year 855 of the Common Era, in the Kashmir Valley, a king came to the throne. His name was Avantivarman. He ruled until 883. He was a patron of scholars. He built a new capital. He endowed monasteries.
One of the monasteries he endowed was called the Shura Matha. The records of who founded it have not survived. The records of one man who headed it have, but only by accident.
His name was Ishvarashiva.
What we know about him is the following. He was a Shaiva teacher. He led the Shura Matha during Avantivarman’s reign. He had a contemporary, possibly a co-teacher, named Vishvavarta. He was the first known person in human history to write down the construction instructions for the Sri Yantra - the geometric figure of nine interlocking triangles that is the visual centre of the entire Sri Vidya tradition. He wrote a book containing these instructions. The book had a name. Rasamahodadhi. The Ocean of Essences.
The book is gone.
Not gone in the soft sense - “gone, but you can find a copy in a library.” Gone in the hard sense. There is no surviving manuscript anywhere in the world. The text is lost. What this chapter is about is how we know it existed at all, and what that knowing implies for everyone who has ever drawn a Sri Yantra since.
The figure at the centre
Begin with the geometry. The Sri Yantra is, even now, the central object of Sri Vidya. Every initiate worships it. Every temple of Sri Vidya houses one. Every Friday in households across India, men and women place flowers and red kumkum on its central point - the bindu. The figure is composed of nine triangles - four pointing upward, five pointing downward - that overlap and interpenetrate to produce 43 smaller triangles, surrounded by an eight-petalled lotus, then a sixteen-petalled lotus, then a triple square enclosure called the bhupura with four gates at the cardinal directions. The construction is mathematically demanding. Many of the secondary triangles must close perfectly at points where the major triangles intersect. Modern mathematicians have written papers on the complexity. Done correctly, the figure is, in the tradition’s own language, the universe in geometry. Done incorrectly, it is decorative.
The figure does not appear in the Vedas. It does not appear in the early Upanishads. It does not appear in the Brahmanda Purana, which by the 6th century had already given the goddess Lalita Tripurasundari her thousand names, her court, her residence at Sri Nagara on Mount Meru, her cosmic battle against the demon Bhandasura. The text of the Lalitopakhyana - published in modern Sanskrit editions by Motilal Banarsidass, the Hayagriva-Agastya dialogue covering forty chapters of the Brahmanda Purana’s Uttara Khanda - describes the goddess in extraordinary iconographic detail. It does not contain the Sri Yantra.
The figure also does not appear in Thirumoolar’s Tirumantiram, the Tamil work of over three thousand verses composed sometime between the 4th and 6th centuries CE, which forms the tenth volume of the Tamil Shaiva canon known as the Tirumurai. The Tamil tradition that worships the same goddess does so through other geometries - the Navakkari Chakra, the nine-letter mantric diagram unique to the Siddha line.
Into written history
Somewhere between the Lalitopakhyana in the 6th century and the year 900, the Sri Yantra entered written history. And per Jayaratha, the 13th-century Kashmiri Tantric scholar whose Vivarana commentary on the Vamakeshvarimata is the source for almost everything we know about the early Kashmiri Sri Vidya teachers, it entered through Ishvarashiva’s Rasamahodadhi.
This matters more than it sounds.
There are two possibilities for how the Sri Yantra got into Ishvarashiva’s book. Either he was the man who first received it - through what the tradition would call darshana, direct vision - and wrote it down for the first time. Or he was the first man to write down something that had already been transmitted orally for some unknown period, possibly centuries. Neither possibility has direct evidence. What is direct evidence is the negative: there is no earlier written record. The Rasamahodadhi is the floor. Below it is silence.
Then the book disappears
Then the book disappears.
We do not know how. We do not know when. Kashmir went through repeated political upheaval in the centuries after Avantivarman - court intrigues under the later Karkotas, the rise and fall of the Lohara dynasty, the eventual Muslim invasion of the Valley in the early 14th century when Shah Mir established the first sultanate. The destruction of Sanskrit manuscripts during this period is well documented in the Kashmir chronicle tradition; the historian Kalhana’s Rajatarangini, composed in 1148–1149 CE, records the burning of libraries by earlier rulers as well. The Rasamahodadhi may have perished in any of these episodes. It may have rotted, simply, in a damp Kashmir monastery before anyone made a copy. It may have been destroyed deliberately by a rival sect. We have no idea.
What we have is the fact that by the time the 13th-century Kashmiri scholar Jayaratha Rajanaka - the same Jayaratha who wrote the great commentary on Abhinavagupta’s Tantraloka - sat down to compose his Vivarana on the Vamakeshvarimata, the Rasamahodadhi was already a lost text. Jayaratha had not read it. He was working from secondary references. But he knew it had existed, he knew Ishvarashiva had written it, and he knew it had contained the construction of the Sri Yantra.
He wrote this down.
The scholar Louise M. Finn, whose 1986 critical edition The Kulacūḍāmaṇitantra and the Vāmakeśvaratantra: With the Jayaratha commentary (Wiesbaden: Harrassowitz Verlag) is the standard modern Western source for Jayaratha’s text, places Jayaratha at “the end of the 12th and the beginning of the 13th centuries.” The reference to Ishvarashiva in his Vivarana is, per the catalogue Hindu Tantric and Sakta Literature by Teun Goudriaan and Sanjukta Gupta (Otto Harrassowitz, 1981), the earliest surviving evidence of the Rasamahodadhi’s existence. Without Jayaratha’s mention, we would have no record that the book had ever been written. The first commentator on the foundational tantra of Sri Vidya would be Jayaratha himself, in the 13th century, and the Kashmir crystallization that brought the Sri Yantra into written form would be invisible.
The one disapproving citation
Jayaratha is not generous to Ishvarashiva. The passage that mentions him, translated in Finn’s edition, reads in part: “the drawing out of Cakräsana-vidyä cannot be resolved in favour of Śrīmad-Īśvarśiva any more than Rājānaka Kalyāṇa.” This is critical, not laudatory. Jayaratha is dismissing Ishvarashiva’s interpretation of a specific mantric extraction on the Sri Yantra in favour of another reading. But the dismissal is the gift. To dismiss an interpretation, the interpretation has to be known. To say Ishvarashiva got something wrong, Jayaratha had to know what Ishvarashiva had said. And to know what Ishvarashiva had said, the Rasamahodadhi had to exist in some form three hundred years after its author’s death - possibly as a manuscript Jayaratha had access to, possibly only as a teaching transmitted orally, possibly only as quotations preserved in other Sanskrit commentaries Jayaratha himself was reading.
We do not know which.
What we know is that after Jayaratha, the Rasamahodadhi disappears from the record entirely.
A lineage one citation deep
Two centuries later, in Kerala in the 15th century, a teacher named Shivananda - described in the same Goudriaan-Gupta catalogue and in the introduction to Bhaskararaya’s Setubandha - wrote a major commentary on the same text Jayaratha had commented on. He called his work the Rujuvimarshini. He, too, knew the Rasamahodadhi by reference but not by manuscript. Around the same time, in another region, a third commentator named Vidyananda wrote the Artharatnavali on the same text. He also did not have a copy of Ishvarashiva’s work. In the 18th century, Bhaskararaya Makhin in Varanasi wrote the Setubandha - his own great commentary on the Vamakeshvara Tantra, completed alongside his Saubhagya Bhaskara on the Lalita Sahasranama in 1728 - and he, too, knew of the Rasamahodadhi only as a referenced text that no living scholar had seen.
The lineage of survival is one citation deep. Cut Jayaratha out of the historical record, and the lineage of Sri Yantra construction we now have - running from the Rasamahodadhi through Jayaratha’s Vivarana through Shivananda’s Rujuvimarshini through Bhaskararaya’s Setubandha - would have a missing first link. The Sri Yantras drawn today in every Sri Vidya monastery would still exist, because the geometry was transmitted in many other texts and through unbroken guru-disciple lineages of practice. But the historical claim that the Sri Yantra has a specific point of textual origin in 9th-century Kashmir would not be makeable. The figure would float free of history, the way mythologically-traced traditions do - ancient in feel, ungrounded in chain of evidence.
Jayaratha grounded it. By writing down, in a critical aside, that he disagreed with Ishvarashiva’s reading, he placed Ishvarashiva in the historical record. By placing Ishvarashiva in the record, he placed the Rasamahodadhi in the record. By placing the Rasamahodadhi in the record, he gave the Sri Yantra a human author and a human century. A monk under a Kashmiri king, drawing the figure for the first time on the floor of a monastery on the banks of the Vitasta - the river the Greeks called Hydaspes and the modern world calls Jhelum.
What the loss teaches
Two things follow from this story.
The first is that the Sri Vidya tradition is older than its texts. The fact that the Rasamahodadhi is the first written record does not mean the Sri Yantra was invented in the 9th century. The most likely interpretation - and the one Jayaratha himself accepts - is that Ishvarashiva was systematising an existing oral tradition. What he received, he received from teachers. What those teachers received, they received from earlier teachers. The textual record begins where the textual record begins. The tradition does not.
The second is that the entire scholarly history of Sri Vidya - every modern study, every academic dating, every reconstruction of who taught whom - runs through a small number of survival accidents. Jayaratha could have died before completing his Vivarana. The single manuscript his commentary survived in could have burned in any of a dozen later fires. The Kashmir Series of Texts and Studies - the colonial-era publication project that printed Jayaratha’s text in its KSTS 66 volume from Srinagar - could have failed to find it. Each link is thin. Each link held. The Sri Yantra in your hand, if you have one, came down to you on a chain whose first surviving link is one disapproving citation by a 13th-century scholar in Kashmir.
What this chapter has established is the first beat of a much longer story. Sri Vidya is not a tradition that arrived complete and was passed down intact. It is a tradition that survived in fragments, was reconstructed by scholars, was systematised under pressure, and reached its modern shape through a small number of named individuals whose decisions to write or not to write made the difference between transmission and silence.
The next chapter goes south, to a different language, to a man whose contribution to the same tradition was made not by writing one book that was lost, but by writing three thousand verses, supposedly at the rate of one verse per year, on palm leaves, while sitting in unbroken meditation under a tree for what the tradition holds was three thousand years. His name was Thirumoolar. He was, depending on which scholar you trust, a contemporary of Patanjali at 200 BCE, or a 6th-century contemporary of Ishvarashiva himself. Either way, the work he left behind has a fate almost the opposite of Ishvarashiva’s: instead of one lost book reconstructed by citation, it is a colossal text that survives in full, with a backstory the tradition has never stopped telling.
Frequently asked
What is the Rasamahodadhi?
A 9th-century Kashmiri text attributed to Ishvarashiva, said to contain the earliest written instructions for constructing the Sri Yantra. It is lost; its account survives only through later commentary.
How do we know the Rasamahodadhi existed if it is lost?
The Rasamahodadhi is referenced in the 13th-century commentarial tradition associated with Jayaratha, which preserved its account of the Sri Yantra's construction. No manuscript survives.
Why does the Sri Yantra's written origin matter?
The Sri Yantra is the geometric centre of the entire Sri Vidya tradition. Tracing its earliest written record shows how the geometry was transmitted across lineages.
Sources
- Jayaratha, commentary tradition on the Tantraloka (13th c.)
- Goudriaan & Gupta, Hindu Tantric and Shakta Literature
- Bhaskararaya, Setubandha (on the Nityashodashikarnava)