Side Covering

Ōhi: A Tang Dynasty Buddhist Shoulder Cloth Brought to Japan by Kūkai

Among the many extraordinary treasures of Tō-ji temple (formally known as Kyō-ō-gokoku-ji) in Kyoto, the Ōhi (横被) holds a singular place in the history of Japanese Buddhism and East Asian textile arts. This elegant rectangular cloth—a Buddhist vestment accessory designated as a National Treasure of Japan—was carried across the sea from Tang Dynasty China by the great monk Kūkai (空海, 774–835), the founder of the Shingon school of Buddhism, over 1,200 years ago.

Today deposited at the Kyoto National Museum, the Ōhi stands as one of the oldest surviving examples of Tang-era textile craftsmanship in Japan, as well as a tangible link to Kūkai's transformative journey to the Asian continent. For visitors with an interest in the cultural crossroads of ancient Buddhist civilization, this masterpiece offers an unforgettable window into the aesthetic sensibility and spiritual devotion of the 8th century.

What Is an Ōhi?

In traditional Japanese Buddhist practice, an ōhi is a long, narrow, bordered cloth that accompanies the shichijō kesa (seven-strip vestment). When a monk wears the kesa draped over the left shoulder—a style called hendan uken, which leaves the right shoulder bare—the ōhi is placed over that exposed right shoulder to provide coverage and decorum. It is not made from the same fabric as the kesa itself, but rather from a separate, often luxurious textile.

The ōhi became widely used in Japan from the Heian period (794–1185) onward, and the oldest surviving example is this very piece preserved among the treasures of Tō-ji. Its existence attests to the ritual practices transmitted directly from Tang China through Kūkai's mission.

Historical Background: Kūkai's Journey to Tang China

In 804, the young monk Kūkai sailed to China as part of an official Japanese embassy to the Tang court. In the great capital of Chang'an, he studied under the eminent Esoteric Buddhist master Huiguo (恵果, 746–806) at Qinglong Temple. Huiguo recognized Kūkai's extraordinary talent and transmitted to him the complete teachings and lineage of Esoteric Buddhism. Along with scriptures, mandalas, and ritual implements, Huiguo bestowed upon Kūkai a set of sacred vestments—including the celebrated Kenda Kokushi Kesa (犍陀穀糸袈裟) and its companion piece, this Ōhi.

These items are recorded in Kūkai's own Shōrai Mokuroku (Catalogue of Imported Items), which he presented to the Japanese court after returning in 806. The vestments were stored in the magnificent Kaibu Makie Kesa-bako (海賦蒔絵袈裟箱), a lacquered vestment box that is itself designated as a National Treasure. Historical records, including the Yōwa Ninen Goshichinichi Mishuhō-ki (a diary from 1182), confirm that these items were kept together in this box at Tō-ji.

Why Was the Ōhi Designated a National Treasure?

The Ōhi was first designated as an Important Cultural Property on March 31, 1953, and elevated to National Treasure status on November 14 of the same year. Its significance rests on several key factors:

• Exceptional rarity as a Tang Dynasty textile: The main body (tasō-bu) of the Ōhi is made from a brown-ground large floral patterned twill (大花文綾), an exquisite example of 8th-century Chinese weaving that preserves the characteristics of Tang Dynasty dyeing and textile techniques. Such surviving examples are extraordinarily rare worldwide.
• Direct connection to Kūkai: As a personal possession transmitted from the great master Huiguo to Kūkai, the Ōhi provides irreplaceable material evidence of the transmission of Esoteric Buddhism from China to Japan—one of the most significant cultural exchanges in East Asian history.
• Importance for the history of costume and textile arts: Together with the companion kesa, the Ōhi contributes invaluable information to the study of ancient textile production, Buddhist vestment traditions, and Sino-Japanese cultural exchange.

Description and Artistic Highlights

The Ōhi measures approximately 180.0 cm in length and 86.3 cm in width—a substantial piece of cloth that would have draped elegantly over a monk's right shoulder during formal ceremonies. The main body is composed of two widths of a brown-ground, large floral patterned twill fabric, a textile type characteristic of Tang Dynasty luxury weaving. The bold, sweeping floral motifs evoke the cosmopolitan aesthetics of 8th-century Chang'an, where Chinese, Central Asian, and Persian artistic influences converged.

The borders and lining are made from a purple-ground Chinese arabesque patterned twill (紫地唐花文綾地綾), the same fabric used for the lining of the companion kesa. This harmonious use of materials suggests that the ōhi and kesa were conceived and crafted as a coordinated set. The lining is assembled from two widths of fabric, with a braided ring (kakuuchi rinkata) in predominantly black mixed colors attached at one point, serving as a fastening element.

While more than twelve centuries have taken their toll—the textile shows the delicate fragility of great age—the weave patterns and color harmonies remain discernible, allowing scholars and visitors alike to appreciate the remarkable craftsmanship of Tang Dynasty weavers.

The Companion Kesa and Vestment Box

The Ōhi is closely associated with two other National Treasures from Tō-ji:

• Kenda Kokushi Kesa (犍陀穀糸袈裟): A magnificent seven-strip kesa woven in the tapestry technique (tsuzure-ori). The main panels display cloud-like patterns in approximately ten shades of purple, green, yellow, and indigo, replicating in exquisite woven fabric the appearance of a funzō-e—a vestment made from discarded rags, symbolizing renunciation of worldly goods. Measuring 115.7 × 272.7 cm, it is one of the finest surviving examples of Tang Dynasty tapestry weaving.
• Kaibu Makie Kesa-bako (海賦蒔絵袈裟箱): An early Heian-period lacquered box decorated with motifs of waves, waterfowl, fish, and turtles in makie (sprinkled gold) technique. The maritime imagery is thought to evoke Kūkai's voyage across the sea in pursuit of Buddhist teachings.

Together, these three objects form a remarkable ensemble that traces the transmission of Esoteric Buddhism from Tang China to Heian Japan.

Visiting the Ōhi

The Ōhi is owned by the religious corporation of Kyō-ō-gokoku-ji (Tō-ji temple) and is deposited at the Kyoto National Museum for preservation and occasional public display. Because of its great age and delicacy, the textile is not on permanent view but is exhibited during selected collection exhibitions and special textile showcases. Visitors are advised to check the museum's exhibition schedule before planning a visit.

The Kyoto National Museum itself is a premier cultural institution, opened in 1897 and housing an outstanding collection of art and cultural properties from the Heian to Edo periods. The modern Heisei Chishinkan Wing, designed by architect Taniguchi Yoshio and opened in 2014, provides state-of-the-art exhibition spaces where many of Kyoto's most important cultural treasures are displayed with excellent bilingual commentary.

Exploring the Surroundings

The Kyoto National Museum is located in the Higashiyama-Shichijō area of Kyoto, one of the city's most historically rich neighborhoods. Several major cultural landmarks are within easy walking distance:

• Sanjūsangen-dō (三十三間堂): Directly across the street from the museum, this temple is famous for its 1,001 statues of the Thousand-armed Kannon. A combined visit is highly recommended.
• Tō-ji Temple (東寺): The home temple of the Ōhi, located a short bus ride or taxi from the museum. Visitors can see the iconic five-story pagoda (Japan's tallest wooden tower), the extraordinary three-dimensional mandala in the Lecture Hall, and the treasure hall with rotating displays of Tō-ji's other National Treasures. Special exhibitions are held seasonally.
• Kiyomizu-dera (清水寺): The famous hillside temple with its dramatic wooden stage is approximately 20 minutes' walk to the north through charming Higashiyama streets.
• Kyoto Station: Just 20 minutes on foot from the museum, offering excellent dining, shopping, and transportation connections.