Mahavairocana (J. Dainichi Nyorai) is the central Buddha in Esoteric Buddhism, representing the universe itself and embodying ultimate truth. In Japan, following the introduction of Esoteric Buddhism during the Heian period, various esoteric rituals became widespread, and Mahavairocana was regarded as an essential figure alongside the Ryokai Mandalas, which visualized cosmic truth and enlightenment in a geometric form. Unlike typical representations of the Buddha, Mahavairocana is depicted in the appearance of a bodhisattva, adorned with tied hair and various ornaments. The deity forms the ‘wisdom fist mudra,’ where the left index finger is encircled by the right hand, symbolizing the truth. This mudra is particularly associated with Mahavairocana of the Diamond Realm. The sculpture uses the yosegi-zukuri technique, where the head, torso, and arms are separately carved and assembled. Traces of gold remain on the body and legs, suggesting that the wooden figure was finished with lacquer and gold leaf. The folds of the robes are treated in a somewhat formalized manner, indicating later restoration. However, the serene yet vivid expression of the face reflects the style of the 14th-century Muromachi period.