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What is Saju?
Saju (사주팔자) is an ancient Korean and Chinese system for understanding personality, relationships, and life cycles — based entirely on your exact birth date and time.
Used for over 1,000 years in Korea, China, and Japan, it is still taken seriously today in career decisions, relationships, and major life choices. Think of it as the Eastern equivalent of a birth chart — but built on different foundations.
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The Four Pillars · 사주
Your birth moment is encoded into four pairs of characters — the Four Pillars.
Year · 년年柱Social self
Month · 월月柱Career path
Day · 일日柱True self
Time · 시時柱Inner world
Each pillar contains a Heavenly Stem and an Earthly Branch — giving you eight characters total. Your Day Master (the stem of the Day pillar) is considered your core energy and personality.
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The Five Elements · 오행
Every character in your chart belongs to one of five elements. Their balance shapes your strengths, challenges, and what you need from life.
🌲 Wood
🔥 Fire
⛰️ Earth
⚔️ Metal
💧 Water
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How to Use This Chart
1Enter your name, birth date, and birth time. If you do not know your birth time, select Unknown — you will still get a partial reading.
2Your Day Master appears instantly — this is your core element and personality energy.
3Scroll through your elemental balance, psychology analysis, luck cycles, and AI personal reading.
4The AI reading at the bottom synthesizes everything into a personal narrative written specifically for your chart.
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Common Questions
Do I need to know my birth time?
No. If you do not know it, select Unknown. You will still get a strong reading — birth time adds the Hour Pillar but is not required.
Is this the same as Western astrology?
No. Saju uses a completely different system — no zodiac signs or planets. It is built on the Chinese calendar, Yin and Yang, and the Five Elements.
How accurate is it?
Many people find it surprisingly resonant. It is an interpretive framework, not a scientific prediction — use it for self-reflection, not as a fixed verdict.
What is the Day Master?
Your Day Master is the Heavenly Stem of your Day Pillar — considered your core personality energy in Saju. It is the most important single character in your chart.