By Dan Segarra, 9th Degree Black Belt in Tang Soo Do

There are many symbols that surround us in the dojang/dojo—symbols we salute, train beneath, and pass daily without always pausing to consider their depth. They are so familiar that they fade into the background, yet they carry centuries of philosophy, strategy, and insight.

One such symbol is the Taegeukgi (태극기), the national flag of South Korea.

To many practitioners, it is simply “the Korean flag.” But to those who look more closely, it is a compressed map of Eastern philosophy, one that speaks directly to martial arts, strategy, and the understanding of change itself.

At the center of the Taegeukgi is the familiar Taegeuk (태극)—the red and blue representation of Um and Yang (known as Yin and Yang in Chinese philosophy). This symbol does not depict good versus evil, but dynamic balance: opposing forces that continuously transform into one another.

Surrounding the Taegeuk are four sets of three-line symbols. These are called 괘 (Gwae)—and collectively, they come from a system known as the 팔괘 (Palgwae), the Eight Trigrams.

These are not decorative elements. They are functional symbols drawn directly from the I Ching, the ancient Book of Changes.

To understand why this matters to martial artists, we must look at the roots.

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The I Ching and the Martial Mind

The I Ching is one of the oldest philosophical systems in human history. It was not created to predict the future (although it is often promoted as that), but to understand change—how situations evolve, how forces interact, and how correct action depends on timing, balance and understanding the moment you are in.

This way of thinking is inseparable from true martial understanding.

Grandmaster Hwang Kee understood this deeply.
“In Korea and China when philosophy is mentioned, we natural think of Nature,
and when it comes to literary study, we think of the I Ching” – Hwang Kee.

He was not only a martial artist; he was a serious and disciplined student of classical Eastern philosophy. Among the texts that profoundly influenced his thinking was the I Ching. He wrote extensively about its principles in Moo Do Chul Hak (무도철학), emphasizing that martial arts cannot be reduced to physical technique alone.

For Hwang Kee, real martial understanding required:

• Awareness of change
• Sensitivity to balance
• Correct response through timing

Technique without philosophy, he believed, was incomplete.

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Yin and Yang: The Binary Foundation of Change

At the core of the I Ching is Um and Yang—not opposites locked in conflict, but complementary forces in continuous interaction.

• Yang (陽 / 양) represents activity, initiative, heat, expansion, firmness
• Yin (陰 / 음) represents receptivity, cooling, contraction, softness, containment

In the I Ching, these forces are expressed visually as lines:

• Solid line (—) → Yang
• Broken line (– –) → Yin

This is the critical insight: reality can be modeled using simple states.

Just as modern computers rely on 1s and 0s, the I Ching relies on solid and broken lines. From these minimal elements, complex behavior emerges.

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From Lines to Structure: Why Meaning Emerges

The I Ching does not assign meaning arbitrarily. Structure creates function.

Each line represents a level of reality:

• Bottom line — foundation, instinct, Earth
• Middle line — human awareness, choice, Human
• Top line — direction, vision, Heaven

When Yin and Yang occupy these positions, they describe how energy behaves across levels. From that behavior, both natural images and human qualities arise.

This is why the system works like an early intelligence model: meaning emerges from structure, not imagination.

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How Trigrams Become Images and Qualities

☰ Heaven — 건 (Geon) — 乾 (Qián)

Three solid Yang lines

With uninterrupted Yang at all three levels, activity flows without resistance.

• Natural image: Heaven — the source of motion and creation
• Human quality: Leadership, creativity, strength

This is leadership rooted in responsibility, not dominance.

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☷ Earth — 곤 (Gon) — 坤 (Kūn)

Three broken Yin lines

Complete receptivity across all levels.

• Natural image: Earth — the supporter and nourisher
• Human quality: Receptivity, endurance, stability

Nothing grows without Earth. In martial terms, this is rooting and patience.

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☲ Fire — 리 (Ri) — 離 (Lí)

Yang–Yin–Yang

Fire burns hottest on the outside and depends on fuel at the center.

• Natural image: Fire — illumination
• Human quality: Awareness, clarity

Awareness surrounds sensitivity. Insight must be fed or it burns out.

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☵ Water — 감 (Gam) — 坎 (Kǎn)

Yin–Yang–Yin

Strength hidden at the center, flexibility outside.

• Natural image: Water — depth and flow
• Human quality: Adaptability, resilience

Water yields without losing power.

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☳ Thunder — 진 (Jin) — 震

Yang rising from below

• Image: Thunder
• Quality: Initiative, awakening

The spark that breaks inertia.

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☴ Wind / Wood — 손 (Son) — 巽

Yang supported by Yin

• Image: Wind / Wood
• Quality: Influence, growth

Quiet strength that endures.

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☶ Mountain — 간 (Gan) — 艮

Strength restrained

• Image: Mountain
• Quality: Stillness, control

Knowing when not to move.

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☱ Lake — 태 (Tae) — 兌

Strength beneath openness

• Image: Lake
• Quality: Joy, communication

Expression grounded in discipline.

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The Korean Flag Revisited

The Taegeukgi is not symbolic decoration—it is philosophy encoded.

• Taegeuk: constant transformation
• Palgwae: fundamental states of reality

The flag declares that change, balance, and awareness are foundational Korean values.

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From Trigrams to Hexagrams: A Decision Engine

Two trigrams form a hexagram. There are 64, each representing a life situation.

Changing lines indicate movement, producing branching situational outcomes:

• Improve
• Decline
• Stabilize

This is conditional logic—the same structure used by modern AI.

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Binary Code and Modern Computing

Philosopher Gottfried Wilhelm Leibniz recognized that the I Ching’s line system mapped perfectly onto binary mathematics.

• Solid = 1
• Broken = 0

The machine came later.
The logic came first.

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Thinking Like the I Ching

The I Ching teaches us to evaluate conditions, not chase predictions.

Any situation can:

• Improve
• Get worse
• Stay the same

The outcome depends on timing, awareness, and response.

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The Warrior-Scholar Application

Tang Soo Do trains this same intelligence.

Push when appropriate.
Yield when necessary.
Pause when stillness preserves power.

This is not mysticism.
It is situational awareness.

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Ancient Intelligence, Modern Relevance

Modern AI analyzes data.
The I Ching analyzes patterns of change.

Both ask:

Given the current conditions, what is the correct next move?

In that sense, the I Ching may not only be humanity’s first artificial intelligence—but its most wise one.

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For more writings on martial philosophy, history, and Warrior-Scholar thinking, visit
https://warriorscholaruniversity.com/