How should I ask questions to get the most accurate answers from 8Letters AI?

8Letters is not just a simple chatbot but a 'high-precision destiny simulator.' Your questions act as queries that explore the internal database, so the more specific your situation and clear your goals, the exponentially higher the resolution of the analysis.

What is the difference between Easy Mode and Pro Mode?

You can select between two modes depending on your familiarity with Saju terminology and preferred style.

What is the thinking level and how do I adjust it?

In the right panel (Settings), you can adjust the AI's computational depth from level 1 to level 5. The higher the level, the stronger the AI's logical reasoning and complex pattern analysis capabilities, yielding more precise results. For light daily advice, use a low level; for major life decisions (marriage, business, job change, etc.), a high level is recommended. However, higher levels consume more credits.

What are the functions of the tools (Cross Check, Classical Archive, Expert Mode)?

These are three powerful extension tools that complement AI analysis.

How do I use the system instruction?

This feature allows you to force the AI's tone and manner (speaking style) or a specific persona. Click 'System Instruction' in the right panel to write and save your own instructions. For example, you can set it to "Answer like a close friend using casual speech" or "Explain like a professional metaphysician mixing in Chinese characters."

How do I modify my Saju information (profile)?

You can modify your profile via the 'Profile Selection' menu in the right panel or from the `[Settings] > [Membership] > [Mailing]` page. If your birth date/time changes, the existing analysis cache is immediately discarded, and new Natal Chart data including Heavenly Stems, Earthly Branches, Hidden Stems, 12 Stages of Life, and Symbolic Stars are recalculated through the core calculation engine.

Can I also see compatibility (multi-person analysis) with family or partners?

Yes, 8Letters supports simultaneous multi-profile analysis. In the 'Profile Selection' panel on the right, check (activate) additional profiles of family, partners, or business partners besides yourself, then ask a question in the chat. The AI will load the Natal Charts of all active individuals simultaneously and precisely simulate interactions (Combination, Clash, Destruction, Harm, etc.).

What is the Daily Saju Newsletter (Mailing Service)?

It is a subscription service that delivers a precise daily Saju flow, changing every 2 hours, via email without needing to access a complex app. It combines the results of the basic core calculation engine with the AI interpretation engine (with optional Cross Check, expert mode, and classical archive) to provide the most intuitive and easy-to-understand report. You can manage subscription and option settings on the `[Settings] > [Membership] > [Mailing]` page.

What are the email sending times and first receipt timing?

The mailing service sends emails daily according to the time set by the user. However, the first email sending time may vary depending on the subscription (payment approval) time and the set time.

Why are the results always wrong when I ask general AI about Saju?

General large language models like Claude or ChatGPT are merely text generators that 'understand context and predict the next word'; they do not have an internal Manse Calendar engine for Saju calculations. This leads to the following critical limitations.

How did 8Letters solve this problem?

8Letters never leaves Saju 'calculation' to the AI. Instead, it has built a hybrid system where a 'high-precision Manse Calendar engine' performs all calculations, and the AI is solely responsible for 'interpretation.'

Does it contain 'all data' for 100 years?

Yes, it does. But it is not simply 'stored' data; it is in the form of a 'real-time calculation engine.'

What specific information is included?

It is not just characters like "It's a Gapja day, it's an Eulchuk day." The data for each day includes all of the following information.

How does AI utilize this vast amount of information?

If we feed all 100 years of daily data to the AI at once, it causes information overload (noise). That's why we use the 'Smart Extraction' method.

How is 8Letters' time calculation different from ordinary saju apps? (True Solar Time & Global Timezone Auto-Detection)

The time in Saju astrology is not the mean solar time shown by clocks, but the True Solar Time , which takes the moment the actual sun is overhead (due south) as noon (午時) as the absolute standard. The 8Letters engine adopts a Dual Correction Engine that dynamically integrates astronomical orbital equations and geographic coordinates — rather than a one-size-fits-all offset that only works for one specific region.

Back to Magazine

SheltonDOB: 2002-10-092026-09-09

Shelton's US Open 2026: Saju's Fire Test

📌 Related News Topic:Ben Shelton and Carlos Alcaraz clash at the US Open

Overview

Shelton vs Alcaraz at the US Open! Saju reads 2026's Fire energy behind this high-stakes tennis face-off.

Saju Chart & Innate Traits

Ben Shelton's Day Master is Geng, Yang Metal. Metal represents strength, precision, and integrity. A natural competitor, Shelton's chart favors direct challenges. The presence of Earth and Metal in his natal pillars gives him stamina, but Fire's approach in 2026 now tests his control.

News Timeline & Astrological Triggers

In 2026, the annual pillar is Bing Wu, where Yang Fire meets Earth. For Geng Metal, this Fire is Officer energy—a mirror of authority, competition, and public evaluation. Facing Alcaraz, the world's top seed, pushes Shelton to refine under pressure. The Wu Earth support turns stress into stability, so every set is a chance to master his own rhythm rather than overpower the opponent.

Future Predictions & Astrological Guidance

Looking to 2027, the luck shifts to Ding Wei. Ding Fire is a gentler Direct Officer, bringing clarity and discipline. Shelton can transform lessons from this US Open into strategic growth. Expect fewer emotional surges and more court intelligence, making him a consistent presence in upcoming majors.

Analysis Methodology & Reference

Data Source: 8Letters AI Engine (Trained on 11,844+ clinical cases)
Date Calculation Method: NASA JPL Ephemeris (DE431) based True Solar Time
Classical Archive: Yeonhae-Japyeong (淵海子平), Sammyeong-Tonghoe (三命通會), Jeokcheonsu-Cheonmi (滴天髓闡微), Japyeong-Jinjeon (子平眞詮), Gungtong-Bogam (窮通寶鑑), Myeongri-Yakeon (命理約言), Sinbong-Tonggo (神峰通考), Myeongri-Tamwon (命理探源) (8 Major Classical Texts)

This content is generated for analytical purposes. For personalized, high-precision analysis based on your exact birth time and location, please refer to the 8Letters Manse Calendar.

Branch	Animal	Element	Season	Time	Direction	Hidden Stems	Meaning
子(Zi)	Rat	+Water	Winter	23:00-01:00	North	壬/癸	Wisdom·Reserve
丑(Chou)	Ox	-Earth	Winter	01:00-03:00	Northeast	癸/辛/己	Diligence·Endurance
寅(Yin)	Tiger	+Wood	Spring	03:00-05:00	ENE	戊/丙/甲	Courage·Pioneering
卯(Mao)	Rabbit	-Wood	Spring	05:00-07:00	East	甲/乙	Agility·Artistry
辰(Chen)	Dragon	+Earth	Spring	07:00-09:00	Southeast	乙/癸/戊	Ambition·Change
巳(Si)	Snake	-Fire	Summer	09:00-11:00	ESE	戊/庚/丙	Strategy·Wisdom
午(Wu)	Horse	+Fire	Summer	11:00-13:00	South	丙/己/丁	Passion·Integrity
未(Wei)	Goat	-Earth	Summer	13:00-15:00	Southwest	丁/乙/己	Sacrifice·Gentleness
申(Shen)	Monkey	+Metal	Fall	15:00-17:00	WSW	戊/壬/庚	Talent·Adaptability
酉(You)	Rooster	-Metal	Fall	17:00-19:00	West	庚/辛	Precision·Perfection
戌(Xu)	Dog	+Earth	Fall	19:00-21:00	Northwest	辛/丁/戊	Loyalty·Responsibility
亥(Hai)	Pig	-Water	Winter	21:00-23:00	WNW	甲/壬	Abundance·Inclusiveness

12 Earthly Branches

8Letters AI High-Precision Saju Analysis - NASA JPL Solar Time Correction Logic & 11,844 Expert Cases

Overview

Saju Chart & Innate Traits

News Timeline & Astrological Triggers

Future Predictions & Astrological Guidance