Saju Software for Desktop
Create and explore Saju charts, analyze structured metaphysics data, and continue with AI-assisted interpretation—all in one Mystilink workspace.
Core capabilities for Saju analysis
Structured Charts
Generate and explore structured Saju charts with clear pillars, stems, branches, and relationships in one view.
Detailed Analysis
Inspect key elements, patterns, and relationships without jumping between disconnected tools.
AI-Assisted Exploration
Continue your reading with Newton LLM—chart-aware questions inside the same desktop environment.
Desktop Workflow
Keep charts, analysis, and AI together for continuous study.
See your Saju analysis in one workspace
Mystilink brings birth data, chart structure, analysis panels, and Newton into a single desktop surface.
How Mystilink works for Saju
Birth information
Enter or open the birth profile you want to analyze.
Saju chart
Generate a structured chart ready for traditional inspection.
Traditional analysis
Explore pillars, elements, and relationships in one workspace.
AI exploration
Ask follow-up questions with Newton without leaving the chart.
Explore Saju with Mystilink
Four Pillars structure
Work with year, month, day, and hour pillars as structured data.
Heavenly Stems & Earthly Branches
Inspect stem–branch combinations and relationships that matter for classical Saju reading.
Five Elements context
See elemental balance and interactions alongside the chart so analysis stays grounded in the data.
Saju chart software data
Keep the chart as navigable product data you can revisit, compare, and extend over time.
Desktop continuity
Return to previous charts for desktop Saju analysis instead of rebuilding the same query in a browser.
AI-assisted interpretation
Use Newton to explore relationships and scenarios after the structured chart is in place.
Why use a desktop workspace?
Mystilink exists for continuous Saju work—structured exploration, not one-time outputs.
| Online calculator | Mystilink Desktop |
|---|---|
| Quick one-time result | Continuous analysis workspace |
| Simple output | Structured exploration |
| Separate tools | One integrated environment |
| Generic AI chat | Chart-aware AI workflow |
Six things that decide whether the reading is even valid
Saju is a constructed chart before it is an interpretation. These are the steps where it gets built, and where it most often goes wrong.
Building the chartBirth data becomes four pillars through an explicit, repeatable procedure.
The year pillar follows the solar term boundary, not 1 January; the month pillar follows the twelve solar months, not the Gregorian month. Any tool that quietly skips this is not using the same calendar as the tradition it quotes.
Building the chart →True solar timeClock time is not the time the chart is built from.
Longitude differences and daylight saving both move the hour pillar. In Korea a fixed offset plus historical DST changes make this more than a theoretical detail: two birth records can be an hour apart in chart terms while identical on paper.
True solar time →Day masterThe day stem is the 'self' every other character is measured against.
It is read as a description of how someone operates — not a fixed personality label. Whether the day master is strong or weak is a claim about the whole chart, so asking 'what is my day master's personality' skips the step that decides it.
Day master →Luck cycle directionThe same chart runs forward or backward through its decade pillars.
Direction follows the gender and the polarity of the year stem, and this is one of the oldest disagreements in the tradition. If a tool does not state which convention it applied, you cannot compare its luck cycles with a book's.
Luck cycle direction →Annual pillarThe year's stem and branch, layered over the natal chart.
Se-un is read as a relationship between the incoming pillar and the natal structure, not as a forecast sentence. The same year hits two charts differently, which is exactly why a generic annual horoscope is not a saju reading.
Annual pillar →Where the day changesLate-night births depend on which convention the tool uses for the day boundary.
One convention starts the new day at 23:00 with the following day's stem; another keeps 23:00–24:00 on the current day. A birth at 23:30 can therefore produce two different day pillars — and two different charts — from two reputable tools.
Where the day changes →
What people say
From people whose first question was never 'what does my chart say' but 'is the birth time right'.
When the birth hour is fuzzy it just keeps asking. Annoying at first. Then it catches a wrong hour and you get why.
The verification questions feel pedantic. Until they catch a wrong hour. Then you're glad they asked twice.
Stopped pasting birth data into random sites.
Dark mode and local data closed it for me. I don't want birth hours sitting in someone else's CRM.
Keep reading
Three articles on inputs rather than interpretation: birth time, calendar context, and what a translation does to the question.
InputsHow to document an uncertain birth time
Record the source and the range of a birth time instead of inventing a minute, and label any reconstructed time as reconstructed.
CalendarThe Chinese zodiac in its calendrical context
Animal years sit inside a lunisolar system. Branches, stem-branch pairs and the solar-term boundary keep the zodiac from collapsing into a personality shortcut.
LanguageFive Elements or Five Phases? Why translation changes the question
Wood, fire, earth, metal and water as changing relations rather than a shelf of substances — and how the English word choice steers what readers then ask.
A saju tool that shows its inputs, and an agent that remembers them
Most saju disagreements are input disagreements. This page makes the inputs visible; the desktop agent keeps them attached to the reading.
What this page already does
Inputs on the record
Birth time, the time standard applied and the day-boundary convention are stated on the chart, not hidden behind the result.
One chart, stated conventions
The engine applies a named convention for solar time and for the 23:00 day change, so a difference of opinion can point at the convention.
No account, nothing uploaded
The chart is built locally in the browser. Entering a birth date here does not create a profile.
Then continue in the Mystilink Agent
The same chart across sessions
Ask about the annual pillar now, and about the same chart next month — the inputs travel with it instead of being re-typed.
Year-over-year comparison
Keep several annual readings on one chart and ask what actually changed, rather than re-reading last year's conclusion.
Conventions stay explicit
When the agent answers, it states which convention the chart was built under, so a comparison with a book stays possible.
This page does not generate AI commentary, and it does not predict. It builds a chart under stated conventions and explains what those conventions assume; interpretation is yours, or the agent's, with the chart attached.
Go beyond the chart with Newton
Once the structured Saju chart is available, continue exploring the data through Newton LLM directly inside Mystilink.
- Ask questions about the chart
- Explore relationships and patterns
- Compare structures across cases
- Continue analysis without context switching
Built for
- Metaphysics learners studying Saju seriously
- Professional practitioners who need a durable workspace
- Researchers comparing charts and structures
- Users moving from online calculators to desktop software
- Anyone who wants traditional Saju systems with AI support
FAQ
What is Saju (Four Pillars) software?
Saju (Four Pillars) software builds and analyses a chart from the year, month, day and hour pillars; Mystilink keeps that chart as a persistent desktop workspace.
It computes the pillars with their stems and branches, then keeps the Ten Gods, the five elements and the luck cycles beside the chart so structure and interpretation stay together.
- Deterministic chart: pillars, stems, branches and Ten Gods all come from calculation.
- Structure in view: elements, relationships and luck cycles sit next to the chart.
- Persistent workspace: profiles and charts are saved for later sessions.
Does Mystilink run on Mac?
Yes. Mystilink is a desktop application with builds for macOS and Windows, so a Mac is a fully supported platform.
Charting, the analysis panels and the AI layer all run inside the same installed client, which means your profiles and charts stay on your own machine.
- Native app: macOS and Windows ship as one product with the same features.
- Local work: profiles and charts are stored on your machine.
- No cut-down mode: nothing is Mac-only or Windows-only.
Does Mystilink support Windows?
Yes. Windows is a fully supported platform, shipped as the same product as the macOS build.
Download the Windows installer, sign in or register, activate the desktop app, and the same workspace, charting tools and AI layers are available.
- One product: macOS and Windows share the same feature set.
- Activation: sign in or register, then activate the client.
- Local storage: profiles and charts remain on your machine.
Can Saju analysis be combined with a Saju AI layer?
Yes. Once the Saju chart is structured, you can continue with an AI Saju layer inside the same desktop app, without exporting anything to a separate chat tool.
The AI reasons over the computed chart, so its steps stay anchored to the visible pillars, Ten Gods and luck cycles.
- Same chart: the AI reads the chart the tooling produced.
- No switching: nothing is copied into an external chatbot.
- Anchored steps: conclusions trace back to pillars and Ten Gods.
Does Mystilink support related systems?
Yes. The same desktop product also covers BaZi and Zi Wei Dou Shu workflows, so related systems do not need a second application.
Profiles are shared across those workflows, which makes it practical to compare how different systems read the same birth data.
- BaZi: the same Four Pillars method under its Chinese naming.
- Zi Wei Dou Shu: twelve palaces, stars and four transformations.
- Shared profiles: one desktop app with consistent data entry.
Is Mystilink a web app or a desktop app?
Mystilink is a desktop application; the website is not the product.
The site exists for download, account, pricing and product documentation, while all charting and reasoning run in the installed client on your own machine.
- Desktop app: analysis runs in the installed client.
- Website role: download, account, pricing and docs only.
- Local by design: your data is not processed in a browser tab.
How do I get started?
Download Mystilink, sign in or register, activate the desktop app, then open the Saju (Four Pillars) workflow and load a profile.
Setup is deliberately the same for every system: install once, generate the chart first, and only then ask the AI layer, so answers always rest on computed structure.
- Install: download the build for macOS or Windows.
- Activate: sign in or register with your account.
- Open the workflow: choose Saju (Four Pillars), then load or create a profile.
Generate the first chart before asking questions; everything else builds on it.
Start exploring Saju with Mystilink
Bring charts, structured analysis, and AI into one desktop workspace.