Korean stylistic developments and forms were greatly influential in the Asuka, Hakuhō, and Tenpyo periods of Japanese Buddhist sculpture when Korea transmitted Buddhism to Japan in the 6th century.
Those that survive today are typically small bronze votive images used for private worship and sculpture carved in granite, the most abundant sculpting material available in Korea.
Additionally, it displays the dhyana mudra, a gesture of meditation, commonly found in early seated Buddhas of China and Korea, where the hands are interlocked and rest on the lap.
[14] One reason to argue for a Korean provenance is the fact that the rectangular base of the Ttukseom Buddha is solid while Chinese examples are hollow, perhaps indicating a still developing sculpture casting tradition in early Korea.
Some scholars believe that the paucity of extant images from the earliest period of Korean Buddhism is due to the fact that the religion was practiced by a small number of aristocrats and did not become popular with the general population until the 6th century.
By the second half of the 6th century while sculptors maintained the dhyana mudra they opted to displace the rectangular lion throne iconography for complicated drapery which were depicted cascading over the Buddha's seat.
Small differences between the two include the roundness of the face and the lack of plumpness of the lotus petals of the base of the Asian Art Museum image along with the more skillfully carved flame patterns and shape of the mandorla.
The Gansong Art Museum type was particularly popular with copies in Seoul, Pyongyang, and an independent central Buddha which was excavated in Buyeo whose current whereabouts are unknown.
Based on common stylistic similarities, such as the fishtail draperies, the large hands, and the two incised lines on the chest indicating an undergarment (a southern Chinese convention) with the Yŏn'ga Buddha, most scholars believe that it is originally from Goguryeo.
A pensive image dated to the 6th century said to have been excavated in Pyongyang, now at the Ho-am Art Museum, is the only surviving example Goguryeo and is evidence that stylistic elements from the north were transmitted to Silla.
Although the style employed is archaic, X-ray studies of the statue, suggests that it is the younger of the two because of the sophistication of the casting, the bronze being no thicker than one centimeter, the rarity of air bubbles, and the high quality metal.
Professor Woo-bang Kang has argued that the statue was made in Goguryeo, who he believes was the only state technologically capable of casting the image, and was at one point brought to the south.
The passage clearly indicates that the Japanese still needed Korean artisans skilled in metal casting techniques and knowledgeable about specific iconography to construct images.
An image type unique to the Silla Kingdom, and not found in Paekche, Goguryeo, China, or Japan, is a standing Buddha at the National Museum of Korea.
Additionally, the iconographic details of the statue, not found in Chinese sculpture, suggests that Silla had direct contact with artists from southern India and Sri Lanka.
A chronologically contemporaneous figure from 7th century Japan shows the influence of the Baekje style specifically in the handling of the torso, the triple upright crown, and the locks of hair falling over the shoulder.
The inscription mentions Gaya, a group of statelets that were annexed by Paekche and Silla in the 6th century, which may suggest that the image preserves the style prevalent in the Nakdong River valley.
The Tang emperor, following the ambitions of his predecessors, wanted to incorporate Korea into his empire while the Silla rulers vowed to maintain an independent realm.
By 676, people from all the Three Kingdoms had expelled the Chinese from Korea and the Unified Silla state enjoyed a period of great prosperity and relative peace that would last several centuries.
The first image, a standing Buddha which could have been made as late as 692, the date of its purported interment, shows that the style of the preceding Three Kingdoms period, especially in the modeling of the robe, persisted several decades after unification.
The style of central Buddha, including the covering of one shoulder and the fan of folds between the two crossed legs, would be followed by sculptors for the rest of the Unified Silla period and even by artisans of the early Koryo dynasty.
Additionally, while images in the capital were still produced in prestigious bronze, regional Buddhas begin to be made with iron, a material that was considerably cheaper.
The early century of the Unified Silla period is known as a golden age of Korean history where the kingdom enjoyed the peace and stability to produce fabulous works of art.
[46] However, the political instability and weakened monarchy of the late 8th century seems to have had an effect on artisans as Buddhist sculpture began to become formulaic and lose vitality in the use of line and form.
[18][19] During the later days of Unified Silla, iron was substituted as a cheaper alternative to bronze and was used to cast many Buddhas and one can see regional characteristics creeping into the style of sculptures as local warlords and strongmen began to break away from the orbit of the royal family in Kumseong (now modern-day Gyeongju).
The Korean Buddhist sculpture of this period can be identified by the "undeniable sensuality" of the "round faces and dreamy expressions" and "fleshy and curvaceous bodies" of extant figures.
The early phase of Goryeo art is characterized by the waning but influential effect of Unified Silla prototypes, the discarding of High Tang style, and the incorporation of regionally distinctive styles which reflected the influence of local aristocrats who had grown powerful during the declining days of Unified Silla and also reflects the fact that the capital was moved from southeastern Korea to Kaegyong (now modern-day Kaesong).
One example of the lingering influence of Unified Silla art is the Seated Sakyamuni Buddha at the National Museum of Korea which can be dated to the 10th century.
The Eunjin Mireuk is example of early Goryeo sculpture demonstrating the rise of regional styles and the abandoning of a strict interpretation of the standard iconography of Buddhist images.
[49] The seated Avalokiteshvara in "royal ease" pose from the 14th century at the National Museum of Korea shows the stylistic influence of Tibetan Lamaist Buddhism which was favored by the Yuan Mongol court.