SAJU · 사주 · Four Pillars
Korean Saju,
decoded in English.
Find your relationship pattern, career timing, wealth window, and 100-year arc.
12 signs · birth month60 archetypes · birth minute
Year
甲辰
Wood Dragon
Month
丙寅
Fire Tiger
Day
庚午
Metal Horse
Hour
戊寅
Earth Tiger
2,847+ readings delivered since launch
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Free preview · birth time + city next · 60 seconds total · from $9.99
01·The Basics
Your birth moment is a unique cosmic signature
Saju reads that signature across four pillars and five elements - a centuries-old system refined by Korean scholars.
Four Pillars
When you were born, in four moments
Each pillar pairs a heavenly stem with an earthly branch - 60 unique combinations per pillar. Your chart is one of 518,400 possible signatures.
Five Elements
Energy flowing through your chart
Your balance of these five determines patterns in wealth, health, love, and timing - not personality vibes.
Not astrology. Saju doesn't use star positions - it uses the exact astronomical moment of your birth to map deterministic patterns across your life.
Western astrology uses 12 signs assigned by birth month. Saju uses your exact birth minute and 1 of 60 character archetypes. That precision is why it reads specific to you, not to everyone born in your month.
What you'll receive
Your chart, visualized
Two of the surfaces you receive after payment - the 100-year life timeline and the five-element signature derived from your birth moment.
Life timeline
Sample 100-year arc, peaks and valleys per decade.
Five-element signature
Wood
Fire
Earth
Metal
Water
Sample element balance, drives every paid module.
02·How it works
From your birth moment to your reading in under a minute
- 01
Enter your birth details
30 secondsDate, time, and birth city. Takes about 30 seconds. Your city enables true solar time correction for precise hour pillar.
- 02
Our engine calculates your chart
InstantJean Meeus astronomical algorithms resolve your Four Pillars and Five Element balance. Verified against traditional Manseryeok.
- 03
Read your personalized signature
Always yoursPersonality preview is free. Unlock the complete reading across wealth, career, love, health, timing, and 60-year lifecycle.
What you receive
Seven dimensions of your life, mapped to your chart
Personality
Not just “creative” or “analytical.” Your Day Pillar reveals the deeper pattern behind who you are - the one that shapes every decision you don’t even realize you’re making.
Wealth
Find the years your wealth peaks and the windows when it resets. The specific pattern is already in your chart.
Career
Find the exact year windows worth acting on. The gut feeling about your path, confirmed or redirected.
Love
Find the pattern your relationships repeat and the kind of person your chart matches before you do.
Health
Find the organ systems and seasons to watch. The element your chart runs short on, named before symptoms show up.
Life Timeline
Find the peaks, valleys, and turning points across 100 years, including the ones you haven’t reached yet.
Yearly Forecast
Find the months that reward action and the months that favor patience. Plus the alignment that compounds for the decade ahead.
Why SajuCast
What a real saju reading looks like
You already know the generic AI answer. Here's where we land between free AI tools and the traditional master.
Generic AI
Approximates the math
Free chatbots paraphrase saju from general training data. The hour pillar isn't solar-time corrected, the answer drifts on every re-ask, and there's no visual chart. Generic, plausible-sounding text - not a chart.
Traditional master
Pen-and-Manseryeok precision
The right answer for a price - around $150 per session, usually Korean-only, hand-drawn charts you can't share, and same-day-only availability. Accurate, but not how most readers outside Korea will ever reach it.
SajuCast
The master's math, an app's reach
Meeus astronomical algorithms verified against the Manseryeok, 6,056+ cities calibrated for true solar time. Native English, interactive chart, PDF and shareable link, free preview - delivered in seconds and reproducible forever.
Last verified 0s ago
The precision of the master. The accessibility of an app. Without the tradeoff.
Manseryeok verified
Every chart cross-checked vs the Korean almanac
6,056 cities
True solar time corrected
Deterministic
Same answer, every time
Is it you, or is it them?
Why some people make you feel at peace and others drain you, for reasons you can't put words to. Your chart sees the pattern.
Five dimensions, scored from both sides. Works for partners, family, coworkers - anyone you're trying to read.
This is the same reading Korean families have run before marriage for centuries - 궁합 (Gunghap). Now in English, scored across five dimensions.
Compatibility isn't destiny. It's the pattern you've been feeling, named.
03·Sample reading
Here is what real modules look like
A snippet from the Wealth module for a typical Water day master. Yours will read to your exact chart, not this generic example.
Module 02 of 07
Wealth
Water flows toward opportunity, but only through the right channels. Your wealth pattern rewards patient timing over aggressive pursuit.
With your Water day master and a strong Wood month, money comes through long-cycle investments rather than short-term trading. The accumulation years favor compounding and relationships with trustworthy partners.
Your first wealth peak arrives between ages 29 and 33 when the metal-water generating cycle opens. The critical decision window
What to do with this
+ Start positioning for the 2026 metal-water window. Build the two relationships that will compound into your next decade...
Expert caveat
Your chart reveals a specific window when wealth accumulates fastest - miss it and the pattern resets for 12 years.
Your actual reading spans 6 more modules at this depth
Reveal my SajuWhat people say
Real readers, real specifics
Honestly skeptical going in. The personality section was eerily accurate. Wealth section felt a bit general but the life timeline graph alone was worth it.
My Korean friend recommended Saju to me. This reading explained patterns in my relationships that I've noticed for years but couldn't articulate.
Bought this on impulse. Three months later I still reference the career timing section before making big work decisions. Best $20 I've spent.
What is Korean Saju?
Saju (사주), also known as the Four Pillars of Destiny, is Korea's oldest birth-chart system. Your exact birth date and time produce four pillars - year, month, day, and hour - each composed of a Heavenly Stem and an Earthly Branch.
Korean Saju does not analyze star positions. Instead it reads the interaction of five elements (Wood, Fire, Earth, Metal, Water) within your birth chart - a system refined across centuries of scholarly tradition called Myeongrihak(명리학). The result is falsifiable, repeatable insight into personality, career aptitude, relationship patterns, financial timing, and health tendencies.
SajuCast translates this tradition into an online Saju reading in English. Calculations use precise astronomical algorithms verified against traditional Manseryeok (만세력) data - the same accuracy standard Korean Saju masters demand, now available wherever you happen to live.
Saju also reads how two charts move together. The same five elements that map your own pattern compare cleanly against a partner, a friend, or a coworker. SajuCast's Compatibility reading places two birth moments side by side and names the dynamic between them.
Every day without clarity is another day of guessing