The 10 natures of K-SaJu: are you Oak, Sun, Ocean or Rain?

Ask a Korean friend what their saju says, and they might answer with one picture: "I'm a big tree," or "I'm basically a candle." They're talking about a single character, the top half of the day they were born. In K-SaJu (Korean astrology), that character stands for you, and the rest of the chart is read by how it treats that one spot. There are ten of these natures. Here's a portrait of each, two at a time.

Ten natures, five pairs

The natures come in pairs, one for each of the five elements. In every pair, one is big and outward and the other is small and inward. Oak is a whole tree, and Vine is the plant that climbs it. The Sun lights the sky, while a Candle lights a single room. Learning them as pairs works better than memorizing a list, because both halves of a pair share an element but handle it in very different ways.

Your nature comes from your birth day, not your birth year. Each one teams up with six of the twelve animals, so every nature has six birthday types. The outward natures pair with the Rat, Tiger, Dragon, Horse, Monkey and Dog. The inward ones pair with the Ox, Rabbit, Snake, Goat, Rooster and Pig.

Wood: Oak and Vine

甲 (Oak): the tall tree

If you're an Oak, you set a goal and grow straight toward it. You like clearing a path other people can follow, and you keep your chin up the whole way. Your watch-out is the one every tall tree has: if you never bend, a strong wind can snap you. Let yourself sway a little. Two Oak birthday types to look up: Oak Tiger, the Forest King who stands tall alone, and Oak Dog, the Lone Pine who carries everyone's weight.

乙 (Vine): the climber

Vine looks soft and is very hard to stop. Picture a vine pushing up through a crack in a rock wall. That's you: you adapt to wherever you land, and you're great at connecting people. The catch? You keep your worries to yourself. A friend you can really talk to is worth a lot. Try Vine Pig, the River Lotus, or Vine Rooster, the Rock Flower who is tougher than they look.

In one line: Oak grows up, Vine grows around.

Fire: Sun and Candle

丙 (Sun): the light in the sky

Sun people are bright, open and fair with everyone. Walk into a room with one and you'll feel the mood lift. All that passion can come with a short fuse, though. If you're a Sun, pause for one breath before you react. Your light reaches further that way. See Sun Rat, the polite and composed Winter Sun, and Sun Dragon, the Spring Sun and born entertainer.

丁 (Candle): the light in the room

Candles light up the people near them, quietly. They're sensitive and loyal, and once a Candle cares about you, that care doesn't switch off. The watch-out: while you're shining for everyone else, you forget your own flame needs looking after too. Look up Candle Goat, the Campfire, and Candle Pig, the River Star.

The Sun warms a whole city at once. A Candle picks a few people and keeps them warm all night.

Earth: Mountain and Garden

戊 (Mountain): the one people lean on

Mountains are steady, dependable and big-hearted. You don't rattle easily, so your friends treat you as their rock. Being that solid can make you slow to change your mind. Let a fresh breeze in now and then. Meet Mountain Tiger, the Bold Peak, and Mountain Rat, the Lake Mountain who quietly plans for the long term.

己 (Garden): the grower

Gardens are practical and caring. Your gift is helping people and projects grow, one step at a time. You don't always show what you feel, and people can misread that as cool or distant. Saying "thank you" out loud, when you mean it, goes a long way. Try Garden Rabbit, the Spring Meadow, or Garden Rooster, the Harvest Field.

A Mountain stays still so others can lean on it. A Garden gets its hands dirty so things can grow.

Metal: Steel and Jewel

庚 (Steel): the blade

Steel people are decisive and fiercely loyal. When you believe something's right, you move without a second thought. Your words can cut, though, so your real strength is knowing when to keep the blade in its sheath. See Steel Monkey, the Iron Will, and Steel Rat, the Cool Blade who says what everyone's thinking.

辛 (Jewel): the polished stone

Jewels are refined and neat, with a sharp eye and standards that are all their own. When your pride gets bruised, the bruise lingers. Stay close to people who actually see your shine. Look up Jewel Ox, the Buried Treasure, and Jewel Pig, the River Jewel.

Steel is metal fresh from the forge. Jewel is metal after the polish. One is about strength, the other about finish.

Water: Ocean and Rain

壬 (Ocean): the big current

Oceans have a big mind and real wisdom. When something blocks you, you flow around it toward open water. You love your freedom. That's exactly why the advice for Oceans is to pick one place your heart can call home. Meet Ocean Horse, the witty Summer River, and Ocean Dog, the Pack Leader.

癸 (Rain): the quiet soak

If you're Rain, you're bright and intuitive, and you don't need the spotlight. You soak in quietly and help everything around you grow. You also think deeply, which can turn into worrying alone at 2 a.m. Worry half as much, and share the rest. Try Rain Pig, the Endless Sea, or Rain Rooster, the Morning Dew.

The Ocean moves in big, visible currents. Rain works one drop at a time, and you only notice afterward, when everything's green.

Natural pairs between natures

Five pairs of natures are said to click in a special way. Readers call each one a natural pair:

• Oak and Garden
• Vine and Steel
• Sun and Jewel
• Candle and Ocean
• Mountain and Rain

Notice the pattern. The two always come from different elements, and one is always outward while the other is inward. When two people's natures form one of these pairs, our match readings give that link the biggest bonus in the nature part of the score. It's still only one slice of the picture, and our love match guide covers the rest.

Same nature, different season

Your nature is one character out of eight, and the month you were born in shapes it a lot. If you were born in deep winter and your chart is short on warmth, most natures reach for Fire first, while the Sun and Candle reach for Wood, their fuel. In a hot summer with little moisture, most natures want Water, while Ocean and Rain reach for Metal, the source that keeps water running. That's why a December Oak and a July Oak can read so differently. Our five elements guide walks through this with real charts.

Readings also show how strong your nature is within the chart, on a scale that runs from Full power through Well balanced to Go with the flow. None of those is better than another. A strong Oak and a gentle Oak simply need different things.

How to find yours

Your nature is the top half of your birthday type, so you only need your birth date to find it. The birth time matters if you were born close to midnight, because the day can flip. The free life reading shows your nature, your birthday type and your element balance together, and you can browse every type in the birthday types guide.