Dear reader,Now that Sacred Steps: Ohenro is out in the world, we'd like to tell you about one part of building it that we did not expect to take so long: making sure the temple histories were actually right.
The Shikoku 88-temple pilgrimage is the oldest walking pilgrimage in Japan. It is also, in 2026, the subject of an unusually small body of English-language scholarship for its scale and significance. There are wonderful exceptions — Oliver Statler's Japanese Pilgrimage, David Moreton's research, the Tokushima Prefectural government's English materials, a handful of carefully-written academic articles. But the popular English sources — the guidebooks, the travel blogs, the temple-by-temple summaries that aggregate everywhere on the open web — share a problem: they tend to repeat each other, and a small number of errors have propagated for decades.
This was unfortunate for us, because the temple content is the product. When you're writing 940 pieces of cultural content across 88 temples — histories, principal deities, mantras, the meaning of each temple's name, the legends, the ritual customs — the difference between a casual write-up and a careful one is the difference between a charming guide and a trustworthy companion. We wanted the latter.
So we did the work. Below are seven of the errors we found and corrected, what we believe to be the correct version, and where it came from. There are more. These are the ones we think are most worth flagging publicly, in case some other traveler — or, frankly, some other guidebook author — happens upon this post and wants to know what to fix.
Seven corrections
"Temple of Release from the World"? Not quite.
Many English sources translate Shusshakaji (出釈迦寺) as "Temple of Release from the World" or similar — as if shaka referred generically to the secular world.
The kanji 出釈迦 mean "Shakyamuni Appeared." It refers to a specific legend: a young Kūkai, despairing on the cliffs of Mount Gahaishi, leaped off — and Shakyamuni Buddha appeared to catch him. The temple commemorates the moment of Shakyamuni's appearance, not a generic worldly release. The name is from Sino-Japanese 釈迦 (Shaka, Shakyamuni) — not a homophone.
"Sweet Dew Mountain" sounds nice, but it's wrong.
Repeated widely in travel posts: that 甲山 (Kōyama) means something like "Sweet Dew Mountain" — a romantic mistranslation that has propagated for years.
The character 甲 means "armor" or "helmet." The mountain on which the temple sits has a domed silhouette resembling a samurai helmet, hence the name. There is nothing about dew, sweet or otherwise. We say so plainly in the app.
Not one of "Japan's three most sacred mountains."
Iyadaniji is frequently described in English summaries as "one of Japan's three most sacred mountains."
Japan's three most sacred mountains, by long-standing classical reckoning, are Osorezan, Kōyasan, and Hieizan — none of which is Iyadaniji. Iyadaniji is one of the most sacred sites in Japan for ancestral spirits (senzo) — which is itself a remarkable distinction worth honoring on its own terms. We describe it that way.
"Founded by Kūkai in 822." No.
A widely-cited story has Kūkai founding Daikōji in 822 CE.
Daikōji was originally built in 742 CE as a branch temple of Tōdaiji, the great temple at Nara. The 822 date is associated with a restoration under Emperor Saga's edict — Kūkai was involved in the restoration, not the founding. The distinction matters because it places Daikōji in a different lineage from the Kōbō-Daishi-founded temples and changes how its history connects to the pre-Heian Buddhist establishment.
Kūkai did not "enshrine his mother" here.
Repeated, with feeling, in numerous English blog posts: that Kūkai enshrined his mother at Mandaraji.
Kūkai built the main hall and pagoda at Mandaraji to pray for his mother's spiritual well-being. He did not enshrine her there. (Kūkai's mother, Tamayori-Gozen, is associated with Zentsūji's neighboring complex, where she is honored in a memorial hall — but that is a different temple and a different relationship.) Phrasing matters. "Enshrined" implies veneration of a deified figure; "built to pray for" is a son's act of devotion. We describe what actually happened.
Founded 815, not 807. And the meaning is different.
Many sources give Ōkuboji's founding as 807 CE and translate the name as something like "Temple of Great Fulfillment."
Ōkuboji was founded in 815 CE. The name 大窪寺 means "Temple of the Great Hollow" — referring to the topography of its setting, a deep mountain bowl. "Fulfillment" feels apt because Ōkuboji is the final temple, but it is a contextual association readers bring with them, not a translation. The act of completing the 88 is called kechigan (結願) — "fulfillment of the vow" — and we honor that ritual properly in the app's completion flow. But the temple's name itself is geographic.
The highest temple on the entire pilgrimage. And it's in Tokushima.
A surprisingly common claim is that Unpenji is the highest temple "in Kagawa Prefecture" at around 911 meters.
Unpenji sits at 927 meters — and is the highest temple on the entire 88-temple pilgrimage, not just in any one prefecture. It is also administratively located in Tokushima Prefecture, not Kagawa, despite being visited within the Kagawa portion of the henro route. Both details matter for anyone planning the climb, and for any history that places the temple in its actual political-geographic context.
How we did the work
We are a small team, and we cannot read primary 9th-century Japanese sources unaided. What we did, instead, was a slow triangulation: cross-reference the popular English sources against each other, identify claims that weren't uniformly repeated (those are usually the safer ones), then look up the contested or evocative claims in academic sources, Japanese Wikipedia (which is much more rigorously edited than the English version for these temples), the temples' own English-language pages where they exist, and — where the cost was justifiable — Japanese travel and history publications run through machine translation and then sense-checked by readers we trust.
For the kanji translations specifically (Shusshakaji, Kōyamaji, Ōkuboji, and a half-dozen others) we relied on character-level dictionaries and historical etymology references — the kind of work where you have to verify both the modern reading and the meaning the character carried at the time the temple was named. Sometimes those diverge.
We almost certainly still have errors. If you are an academic, a temple historian, a long-time henro, or simply someone who reads Japanese and would like to flag a correction, we would be genuinely grateful — hello@losttheory.app reaches us, and every email is read.
Why this matters
It would have been easy — and a great deal cheaper — to write the temple content from the popular English sources, ship a charming approximation, and trust that most people would not notice. We were tempted, at one or two low points, to do exactly that.
We did not, in the end, for two reasons.
The first is that the temple content is the product. The map and the step tracking are the chassis; the histories, the wisdom teachings, the cultural insights, the meanings of names — that is what the user is actually walking into. A pilgrimage app that gets the temples wrong is a pilgrimage app that doesn't quite work, even if the user can't articulate why.
The second is that we are about to introduce these temples to a lot of people. Tens of thousands, we hope. Many of them will go on to read books, watch documentaries, plan trips, tell friends. Whatever they learn from us, they will carry. Propagating mistranslations would mean adding our weight to errors that have already done quite enough propagating, thank you. We would rather not.
We are responsible, in a small way, for what people end up believing about a place we love.
So we did the work. We will keep doing it. And if you spot something we still have wrong, we want to hear about it.
With thanks to the temples, to the henro who came before, and to the readers who will tell us when we're still wrong — — The Lost Theory team
Walk Japan's 88-temple path
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