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Sibijisin (십이지신): the twelve zodiac guardians in Korean art

Around some of Korea's ancient tombs, twelve stone figures have been standing guard for more than a thousand years. They have human bodies and animal heads: rat, ox, tiger, rabbit, and so on down to the pig. They are the sibijisin (십이지신), the zodiac guardians. Here is where they come from, where to see them and what each one stands for.

From calendar to guardian

The twelve earthly branches, the sibiji (십이지), were born in China as a way of ordering time and space: twelve double hours in a day, twelve months, twelve directions. Later each one was paired with an animal, and that is how the twelve animals we know from the zodiac came about. In Korea, these figures went a step further and became guardians. The logic is lovely: if the twelve animals cover every direction and every hour, placing them around a sacred place protects it completely, day and night, from every side. That is why they appear on tombs, ritual objects and paintings: they are a shield made of time.

The Silla tombs

Unified Silla carried this idea into stone with a creativity all its own. Protective retaining walls, the hoseok (호석), were built around the royal burial mounds, and the twelve guardians were carved into them. The tombs of Kings Seongdeok, Gyeongdeok, Heondeok and Heungdeok, in the Gyeongju area, have examples of this kind. One of the most admired is the tomb of General Kim Yu-sin, also in Gyeongju. There the figures have animal heads and human bodies, wear simple robes instead of armor and hold weapons, with a surprisingly serene air. Scholars consider that the quality of these reliefs reached its peak in that era.

The royal tombs of Joseon

The tradition continued centuries later. In the royal tombs of the Joseon dynasty, the burial mound is often ringed by a base of stone slabs called byeongpungseok (병풍석), which means something like "folding-screen stones". On several of them, the twelve guardians were carved. A good example is Heolleung, in southern Seoul, the tomb of King Taejong and Queen Wongyeong: its screen stones show the twelve guardians alongside ritual objects of Buddhist origin. The royal tombs of Joseon are a UNESCO World Heritage Site, so you can visit them and look for your animal among the stones. It is a peaceful outing, with woods all around.

The first six guardians

The rat, ja (자), opens the cycle: it guards the north and the hours from 11 p.m. to 1 a.m., the moment one day ends and another begins. The ox, chuk (축), keeps watch from 1 to 3 a.m., with the patience of long labor. The tiger, in (인), stands guard from 3 to 5, when the night is still dark and courage is needed. The rabbit, myo (묘), guards the east and the dawn, from 5 to 7. The dragon, jin (진), covers 7 to 9, the hour when the day gathers momentum. And the snake, sa (사), protects 9 to 11 a.m., with its energy of rising heat and sharp attention.

The remaining six guardians

The horse, o (오), guards the south and midday, from 11 a.m. to 1 p.m., when the sun is highest. The goat, mi (미), watches over the after-lunch hours, from 1 to 3 p.m., with its gentle calm. The monkey, sin (신), keeps watch from 3 to 5 p.m., the clever hour when loose ends get tied up. The rooster, yu (유), guards the west and dusk, from 5 to 7 p.m. The dog, sul (술), protects 7 to 9 p.m., when the house locks up and someone has to stay alert. And the pig, hae (해), closes the cycle from 9 to 11 p.m., with the quiet abundance of night. In saju, these same branches appear in your chart as the roots of each pillar.

FAQ

Are the sibijisin the same as the Chinese zodiac signs?

They use the same twelve animals, but in Korea they were also portrayed as guardians with human bodies and animal heads, carved around tombs to protect every direction and hour.

Where can I see them in person?

In Gyeongju, at the tomb of Kim Yu-sin and several Silla royal tombs. In Seoul, at Joseon royal tombs like Heolleung, whose screen stones show the twelve guardians.

Is my guardian animal the one from my birth year?

That is the best-known one, but in saju you have four branches: year, month, day and hour. Each has its own animal, so you actually have a small team of guardians with you.