Daigaku Saburo Gosho (written by Nichiren, July 2nd)

A Buddhist Teacher's Argument, Nearly Four Metres Long

Unrolled to its full extent, this letter stretches roughly 383 centimetres across and stands 30.2 centimetres tall, with 101 lines of brushwork filling the paper. It was written by Nichiren (1222-1282), the monk who founded the Buddhist school that now bears his name, during the years he spent in retreat on Mount Minobu in present-day Yamanashi. The recipient was a lay follower he addressed as Daigaku Saburo. The subject was neither a word of comfort nor a practical instruction, but a sustained argument about why the Lotus Sutra stands above the teachings of the Kegon and Shingon schools.

The result reads less like personal correspondence and more like a scholar's brief. Nichiren lines up scriptural evidence point by point, building his case the way a lawyer or a lecturer might. That tone was deliberate. The man on the receiving end was himself a trained Confucian scholar, and Nichiren chose to meet him on his own ground.

Because the document survives in Nichiren's own hand, it carries a weight that later copies cannot. The official designation records only the day the letter was finished, the second day of the seventh month, with no year attached. Local authorities disagree on which year that was: Matsudo City dates it to 1275, while Chiba Prefecture assigns it to 1278. What no one disputes is the hand that held the brush.

Why This Letter Is an Important Cultural Property

The national government registered the scroll as an Important Cultural Property on 25 April 1968, in the category of historical documents (komonjo). Writings authenticated as Nichiren's own brushwork are comparatively scarce, and each one is treated as a primary source for understanding both his thought and the turbulent religious politics of thirteenth-century Kamakura.

This letter earns its standing for two reasons. The first is completeness. It preserves a fully developed doctrinal argument rather than a stray fragment, so a reader can follow Nichiren's reasoning across all 101 lines. The second reason reaches into one of the most dramatic episodes of his life. In 1271 Nichiren was arrested and brought to the edge of execution at Tatsunokuchi, near Kamakura. By the account preserved here, Daigaku Saburo worked behind the scenes through the powerful official Adachi Yasumori to spare the monk's life. The letter therefore doubles as a record of personal loyalty at a moment when Nichiren's young movement might easily have ended.

The Scholar Who Received It

Daigaku Saburo was the courtesy name of Hiki Yoshimoto (1202-1286), and his story is worth knowing before you read a single line of the letter. He was born into the Hiki clan, a Kamakura family destroyed in 1203 when the Hojo regents moved against them. Yoshimoto, then an infant, was spared and sent into exile. He grew up to serve Emperor Juntoku, accompanied the deposed emperor as far as the island of Sado, and is said to have returned to Kamakura through the intervention of a well-placed niece.

In 1253 he became a follower of Nichiren. He later gave over his own residence in the Hikigayatsu valley of Kamakura, and that gift grew into Myohon-ji, counted among the oldest temples of the Nichiren school. The title "Daigaku" marks him as a man of learning, which is precisely why Nichiren shaped this letter as a reasoned argument rather than a simple exhortation.

Visiting Hondo-ji, the Hydrangea Temple

The scroll is kept at Hondo-ji in Matsudo, Chiba Prefecture, a temple founded in 1277 with Nichiro, one of Nichiren's six senior disciples, presiding over its opening. Hondo-ji shares a lineage with Kamakura's Myohon-ji and Ikegami Honmon-ji in Tokyo, the three long counted together among the leading temples of that tradition.

A note of plain honesty belongs here: the letter itself is not on general public view. Hondo-ji keeps its treasures, including this document, a second Nichiren autograph, and a bronze bell cast in 1278, inside a treasure hall that lies outside the regular visitor route. Most people come instead for the grounds, and the grounds repay the trip on their own. Around 50,000 hydrangeas turn the precinct blue and violet from late May through June, the weeks that earned the temple its nickname, and about 1,500 maples set the five-storey pagoda and roofed walkways against red and gold from late November into early December.

The approach is part of the appeal. From the north exit of Kita-Kogane Station on the JR Joban Line, a path of roughly 700 metres lined with pines and cedars leads to the gate in about ten minutes on foot. During the flower season the precinct charges an entry fee of 500 yen for adults; outside those weeks the gates open from early morning.