Buddhist Sutra Pavilion
Buddhist Sutra Pavilion is a dedicated hall within Buddhist temple complexes for storing sacred scriptures, particularly the Buddhist canons. It serves as both a library and a place for doctrinal study. These structures are vital for preserving Buddhist teachings and have developed distinct architectural and cultural features across different regions. In Chinese Buddhist temples, they are usually termed the Zangjing ge or Zangjing lou. In Japanese Buddhist temples, they are usually termed the Kyōzō. In Korean Buddhist temples, they are usually termed the Janggyeong Panjeon. In Vietnamese Buddhist temples, they are usually termed the Tàng Kinh Các. In Thai Buddhism, they are usually termed the Ho Trai.
The Zangjing ge is a large building in Chinese Buddhist temples which is built specially for storing the Chinese Buddhist Canon. The Chinese Buddhist Canon is the total body of Buddhist literature deemed canonical and was called "all the sutras" in the ancient time. With four thousand kinds, it includes Āgama, Vinaya and Abhidharma texts. Āgama are theories made by Buddha for disciples to practice, Vinaya are the rules formulated by Buddha for believers and Abhidharma is the collection of theories explanations by Buddha's disciples.
A Buddhist texts library is generally two-storey buildings built at the highest point of the temple. The upper storey is for storing sutras and the lower layer is the "Thousand Buddha Pavilion". One of the most prominent historical example of a Zangjing ge in China is the one located in Longxing Temple in Hebei, which was built in the 10th century during the early Song dynasty. It is notable for containing the earliest known example of a zhuanlunzang in China, which is a special octagonal revolving bookshelf. To accommodate this zhuanlunzang, within the building's structure, the Song dynasty architects designed the Zangjing ge using certain unique structural techniques, including shifting the columns and using curved beams.
Japan
In Japanese Buddhism, a prime example of a Kyōzō is Tōdai-ji in Nara, initially constructed during the Nara period as an oil storehouse and repurposed in 1714 during the Edo period to store sutras. Designated a National Treasure, it features a hongawara roof with clay tiles and a yokoro structure made of interlocking timber for enhanced ventilation, moisture resistance, and pest control. This design, refined during the Kamakura and Muromachi periods, reflects classic Nara-era architecture. The depository safeguards invaluable Buddhist texts without housing specific Buddha images, emphasizing its preservation role.
South Korea
In Korean Buddhism, Haeinsa in Gayasan National Park is renowned for its Janggyeong Panjeon, built in the 15th century to house the Tripitaka Koreana—81,258 wooden printing blocks from the 13th century. These depositories, recognized as a UNESCO World Heritage site, exhibit a scientific Joseon era design with natural ventilation systems, adjustable windows, and moisture-regulating materials like charcoal and lime to protect the woodblocks. The structures are unadorned, prioritizing functionality.
Vietnam
In Vietnamese Buddhism, the Bổ Đà Temple in Bắc Giang Province exemplifies this, serving as a major center for the Trúc Lâm tradition of Thiền Buddhism since the Lý dynasty. The architectural style of Tàng Kinh Các adheres to traditional Vietnamese principles, creating a serene, enclosed space. The temple complex includes a large stupa garden and preserves over 2,000 Han-Nom woodblocks of Buddhist texts, which are among the oldest in Vietnam. While the depository focuses on scripture preservation, the temple's main hall venerates Quan Am and other deities. Another significant site is Xá Lợi Temple in Ho Chi Minh City, which stores Pali scriptures on palm leaves and a Buddha relic.
Thailand
In Thai Buddhism, the Ho trai is designed to protect scriptures from the tropical climate's threats, such as humidity, insects, and rodents. Two main architectural styles exist: elevated pavilions over water and land-based buildings with high foundations. The Ho trai at Wat Phra Kaew in Bangkok, part of the Grand Palace, is a prime example. It features a square, multi-tiered roof with serrated eaves and ornate decorations, including guardian yaksha figures. This depository houses a gold-leaf Buddhist canon. While the depository itself may not enshrine Buddha images, Wat Phra Kaew's main ubosot enshrines the revered Emerald Buddha, and the temple complex serves as Thailand's most sacred Buddhist site.